DAEDALUS
Proceedings of
the American Academy
of Arts and Sciences
Andreas Teuber
Department of Philosophy
Brandeis University
OUR atttitudes toward risks vary, depending
on what has happened to us, what we expect, how we feel, what
we know, and what matters to us. We ignore some risks; overestimate
others. Our perceptions are selective. They are influenced by
the forms of social life we inhabit and they change as social
life changes. Nothing illuminates this last point so well as the
origin of our present understanding of life insurance, the earliest
inklings of which can be found in the prospectuses of the first
life insurance companies in the latter part of the eighteenth
century in Europe.
In the 16th and 17th centuries, life insurance
was conceived primarily as a wager. Short-term bets were taken
out on the lives of a third person, usually a prominent figure
like the Pope. The custom seems to have originated in 15th century
Spain and spread successively to Italy, Holland, France, and England.
The 1570 Code of the Low Countries lumps life insurance together
with other "abuses, frauds, and crimes," and by the
end of the 17th century it was illegal almost everywhere in Europe
except Naples and London. Throughout the early modern period,
life insurance was "betting on life," not planning for
it.
Changes in the concept had to await the
arrival of a new group of individuals, those of newly acquired
wealth, who had something to lose were their fortunes to reverse
themselves. An early prospectus of the Equitable Society for the
Assurance of Lives, founded in London in 1762, extols the benefits
of life insurance taken out on the head of the household, by painting
a vivid portrait of the "indigent and deplorable situation"
that could be brought about by his unexpected early death. Playing
upon the anxieties of family members, it makes much of the "catastrophe"
which would occur, were they suddenly "catapulted out of
the middle ranks of society" - which by dint of their own
"industry and thrift" they had struggled so hard to
build up - "to the very bottom."1
The transformation in the conception of
life insurance from "betting on life" to "security
against its loss" illustrates dramatically that our attitudes
towards risk are bound up with what else we believe and value.
They can be seen to make sense only against a certain social background
without which they would lose much of their point.
I. Risk and Consent
We live in a culture that prizes autonomy
and it is against the background of our belief in its value that
our responses to risk acquire their meaning and life. I do not
want to explore the precise shape and contour of the moral importance
that we attach to autonomy or to defend its special significance,
only to point out that we respond differently to risks that we
choose for ourselves and over which we believe we have some degree
of control and to risks to which we are involuntarily exposed.
In technical discussions of risk it is frequently assumed that
risks are negativities and, in a calculation of costs and benefits,
are consigned to the "costs" side of the ledger. To
a mountaineer, however, the risk of a climb or a particular route
up a rock face is seen as part of what makes that climb a challenge,
even worthwhile. Mountaineers will rank different climbs in terms
of their DP or "death potential." The risk is seen as
partly constitutive of the climb, part of its good, and does not
fall outside the means-ends continuum. In this sense, risk is
not merely some cost to be offset by overall benefit.
Part of the reason for the mountaineer's
attitude towards risks is tied, surely, to the degree of control
he believes he has over the risks he must bear. Richard Solomon
has reported that parachutists enjoy a high that lasts twenty-four
hours after their jump.2 Hearing of these findings, Thomas Schelling
commented: "I wonder whether someone thrown from an aeroplane,
saved by a parachute that he didn't know he had, would be exhilarated
by the experience," 3 - a remark that reflects his suspicion
that sensations of control make a difference to our risk responses.
Indeed the experiences of mountaineers and sky-divers show the
extent to which not only perceptions but evaluations of risks
are shaped by the degree to which the risk-bearer feels in command.
Our judgments, too, about when it is permissible
to expose a person to risk or injury are tied to notions of individual
responsibility and human agency. The source of an injury is often
as important to us as its extent. It makes a difference to us
whether a harm was due to natural causes or brought about by the
action of another person. If it was caused by another person,
we usually want to know if he knew what he was doing, and if he
did, whether he acted deliberately and our preoccupations are
reflected in our legal codes and moral practices. If, as Annette
Baier has suggested, morality is nothing more or less than the
culturally acquired art of selecting those harms that make us
mad4, the key question to ask from a moral point of view is not
"what should we do about risk?" but "which risks
do we want to have on our conscience?"
In the following pages I shall focus on
those risks imposed on us by others, on what might be called,
"risk-impositions." Which risk-impositions are morally
acceptable and which are not? Philosophers have paid surprisingly
little attention to the permissibility of risk-impositions, having
devoted almost exclusive attention to the conditions under which
it may or may not be permissible to cause another person harm.5
If, as we seem to believe, it is wrong to cause another person
harm without that person's consent, is it wrong to impose a risk
of harm without consent?6
In light of our commitment to autonomy,
it is perhaps not unreasonable to think that consent might play
a role in the legitimation of risky activity. It plays an important
role in the political process which relies on the participation
of the governed for its sense of legitimacy and in the marketplace
where the ideal transaction is represented as one of voluntary
exchange. Consent too is thought to be necessary in cases
of medical experimentation. Detailed procedures have been developed
for the use of consent forms and for obtaining a patient's "explicit,
informed consent."
Given that our intuitions are fairly well
grounded about the conditions under which we think it is permissible
to expose patients to the risks of experimental drugs or surgery,
it is tempting to take such cases as a model for the justification
of risky activity in general. This, in turn, suggests a minimal
first principle:
II. Problems of Consent
But as workable as such a principle appears
to be in the context of doctor and patient, can it be extended
to less clearly circumscribed and more problematic risk-impositions:
exposure to pesticide drift, the venting of radioactivity from
a nuclear power plant, carbon monoxide fumes from congested traffic,
acid rain from coal-burning power plants located many miles away,
or chemicals in the water supply from an abandoned toxic waste
site? In nearly all of the more problematic cases the risks to
which people are exposed are not distributed singly from one individual
to another. Risks are distributed in small increments over a very
large population or as the result of the actions of a great many
individuals, each of whose action, taken alone, is likely to cause
little harm but when combined pose a very grave threat indeed.
The business of identifying and distributing consent forms to
all those who might possibly be at risk is surely an insuperable
task, to say nothing of the difficulties of measuring the small
magnitudes of risk to each person who may be affected. To complicate
matters still further, many risks have multiple sources and may
inter-relate in synergistic fashion so that it is difficult, if
not impossible, to figure out who is doing what to whom, let alone
draw up contracts among the relevant parties.
Even if the practical difficulties of obtaining
people's consent could be overcome, it is widely reported that
people are notoriously poor judges of risks. People's perceptions
frequently fail to match up with the actual dangers risks pose
and few people have a "feel" for what a chance of dying,
say a chance of one in a million, really means. Research by psychologists
Amos Tversky and Daniel Kahneman has shown that we are regularly
led astray in our assessments of probabilities by rules of thumb.
Faced with a judgment that requires even a minimal familiarity
with statistics, we frequently avoid the statistical information
and rely instead on a description or heuristic which feels less
strange. 8 We tend to overemphasize low probabilities and underestimate
large ones. We have to struggle to resist the gambler's fallacy:
the belief that after a series of losses the odds must favor a
win. We are also poor judges of outcomes. We appear to be more
concerned to avoid a loss than to receive an equivalent gain,
and this asymmetry can be exploited in the way choices are presented.9
Retailers, for example, know enough about our suceptibility to
the way options are framed to represent a surcharge for credit
card customers as a discount to those who are willing to pay cash.10
The influence of framing on judgments about
risk is systematic and pervasive, and shows up at all levels of
education. Health care professionals are no less susceptible to
the effects of framing than their patients who have less experience
and lack their expertise. The following hypothetical case was
put to a group of physicians:
Given these options, fifty percent of the
physicians said they preferred radiation treatment. However when
the same options were presented in terms of survival rates rather
than mortality rates, 84% said they would prefer surgery.
It is perhaps not completely surprising
to learn that people are poor judges of probabilities, but "we
want to give [people] credit for at least knowing their own minds,"
as one report puts it, "when it comes to assigning values
to the outcomes of their choices."12 Apparently, very little
credit is due, as experiment after experiment reveals:
It is generally believed that consistency
in judgments is a minimal condition of rationality. Since our
judgments about risk are apparently inconsistent, it is hard not
to draw the conclusion that our attitudes towards risk are also
irrational. These findings have disturbing implications for public
policy, especially in a society like our own which relies on a
democratic process. If we are irrational in our judgments about
risk, the policies we enact will reflect a similar bias. Given
our untrustworthy attitudes, a consent-based approach to legitimating
risk-imposing activities can only lead to irrational public policies.
III. Cost-Benefit Analysis as a Substitute
for Consent
But if we cannot rely on a consent-based
approach because it is unworkable or not to be trusted, where
are we to turn to find a way to legitimate decisions that expose
us to risks to which we have not been able to give our actual
consent? How should such decisions be made?
Some believe that the way out of this apparent
cul-de-sac is for us to rely on cost-benefit analysis to
tell us what to do in our public policies involving risks. But
cost-benefit analysis is regarded with no small amount of suspicion
by the general public. No matter how efficient such analytic methods
may be, they are believed to require the technical expertise of
well-trained professionals for their operation. Therefore, policies
which emerge from their application are likely to seem less legitimate
than policies that evolve, however clumsily, from a more participatory
political process. Indeed, cost-benefit analysis appears to be
as far removed from a consent-based approach as one could find.
A powerful case, however, in favor of cost-benefit
analysis, put forward recently by policy analysts Herman Leonard
and Richard Zeckhauser, suggests that we may have less to fear
from such methods than we imagine 14 They admit without hesitation
the moral appeal of consent-based solutions and go on to argue
that - contrary to popular opinion - cost-benefit analysis can
be grounded in a form of consent after all. Assumptions about
its narrowly technocratic character are misplaced.
Their argument, in brief, runs as follows.
Cost-benefit analysis incorporates into its calculus the criterion
of economic efficiency as well as an assumption of rationality.
Since people, by and large, want to act rationally and prefer
efficiency to inefficiency, they would consent to public policies
concerning risks to health and safety that were based on cost-benefit
analysis, because the outcomes generated by the analysis are the
same as the outcomes that they would choose, if they could go
through the process themselves. Leonard and Zeckhauser:
Reasonable people should accept the results
of cost-benefit analysis applied to risks because the method measures
and compares all relevant factors, incorporating all our values
and assigning them weights that we would give to them were we
making the decision ourselves, or more exactly, were we making
the decisions on our rationally best behavior. In this sense risk
cost-benefit analysis is our most reasonable self writ large.
It is not an impersonal, narrowly technocratic method for calculating
outcomes. It identifies choices from a range of alternatives that
an idealized rational actor would choose. Reasonable people ought
to rely on cost-beneft analysis to identify solutions to complex
risk decisions because that is the rational thing to do. What
we lose by a lack of opportunity for actual consent we gain in
the concept of rationality. A government agency that relies on
cost-benefit analysis to arrive at a public policy decision about
risk ought not to be seen as imposing its will on an unsuspecting
populace since all that cost-benefit analysis does, we would do.
Cost-benefit analysis applied to risks fills
a vacuum created by the unavailability of market solutions and
the impracticality of obtaining the explicit, informed consent
of all parties to a risk decision. And not only does it fill a
void, it fills it, according to Leonard and Zeckhauser, in an
ethically appropriate way, since the ethical underpinnings for
the defense of cost-benefit analysis ultimately rest, if not on
actual consent, on a form of consent nevertheless, albeit hypothetical.
What are we to make of this? Do we have in cost-benefit analysis
a solution to our problem?
a. Commensurability of Risks
For cost-benefit analysis to do its work,
it is essential that a number of widely divergent alternatives
be comparable. Part of the strength of the technique is its claim
to be able to order and rank a variety of options. To perform
its task, it is necessary to find a measure that is sufficiently
abstract and general so that the costs and benefits of various
alternatives can be lumped together and added up. However the
homogenization that takes place often results in the glossing
over of differences and the production of outcomes that offend
common sense.
Of course common sense itself is not always
a reliable guide. Indeed the failures of common sense in making
judgments about risks are part of the rationale for wanting something
like risk cost-benefit analysis in the first place. But the measure
which cost-benefit analysis adopts to represent all factors on
a single scale must yield comparisons that are in some way recognizable
to us and not so counter-intuitive as to appear arbitrary. Some
such requirement must be taken seriously especially in light of
a defense of cost-benefit analysis on grounds of hypothetical
consent, on the grounds of its being able to produce results to
which people would consent. As Leonard and Zeckhauser themselves
make clear, for their defense of cost-benefit analysis to work,
benefits and costs must be "appropriately" measured.
Part of what will determine that appropriateness will be the intuitive
appeal of the comparisons made under the technique, in their connecting
up, however dimly, with common sense. But this feat is much less
easy to accomplish than might be thought. Imagine that we are
faced with having to compare the expected health risks of the
following two options:
To compare the costs of the two options,
assume that a common measure of "work-days lost" is
chosen, giving the following results:
On the basis of these calculations we should
prefer Option #1. This defies common sense: four days of discomfort
even for a great number of workers, seems preferable to the deaths
of the children. Perhaps the wrong measure of comparison was chosen,
and another measure other than work-days lost would yield a more
intuitive result. Perhaps. But for a comparison to yield the right
intuitive "feel" the common measure we choose will more
than likely have to take some of the particularities of the cases
into account. Although we may be able to come up with a common
measure in a specific case that will yield intuitively acceptable
results, this works against the grain of the analysis as a useful
tool at the level of public policy where there is incentive to
come up with more and more general measures in order to compare
the greatest possible variety of options. It is hard to avoid
the conclusion that no matter what scale of measurement is chosen,
any general measure of comparison will inevitably produce
intuitively unacceptable results.The technique also does not pay
sufficient attention to different human responses to risk, treating
them instead as if they all belonged on the same level, although
perhaps varying in intensity. Individual responses to risks that
are treated as numerically equivalent sometimes turn out to be
significantly different despite their numerical equilvalence.
Too often these differences are allowed to disappear in some general
formulation or get written off, if they cannot be made to fit,
as simply irrational.
b. The Distribution of Risks
For cost-benefit analysis to be of use in
the formation of public policy some way of assigning a value to
the risks themselves is necessary and so some sensitivity to the
ways in which risks are distributed throughout a population is
in order. But there are a number of different ways to identify
the magnitude of risk to a population. So, for example, we can
estimate the chance of dying from a nuclear accident either as
the likelihood of the number of deaths throughout a given population
or we can spread that risk of death equally over individual members
of the same population and estimate the average risk per individual.
Imagine now that we are faced with estimating
the risks of radiation-related deaths from a nuclear accident
of the same order of magnitude that occurred at Chernobyl to the
population surrounding a nuclear power plant in New England. To
those within the plant and in the area immediately surrounding
it there is a danger of losing their lives instantly, whereas
there is a considerably lower risk of delayed cancer deaths to
those living further away. If we translate the expected number
of deaths likely to occur throughout New England from such an
accident into average individual risk, we seriously underestimate
the risks to those who reside in the immediate vicinity of the
plant. If we choose to estimate the average individual risk to
members of the population within a two-mile radius of the plant,
we ignore the risks to the larger population. Which population
we choose as the population at risk is not merely a matter of
convenience. If we know, for instance, that the chances of dying
from a nuclear accident are close to 100% for those working within
the nuclear plant; whereas those who live furthest away face no
risk at all, it is misleading to spread this risk over the entire
population as an average risk per individual. Since cost-benefit
analysis will coincide with universal individual consent only
when all members of a community are affected equally under each
alternative entertained by the analysis, there is a strong temptation
to ignore distributional considerations completely in favor of
an average risk per individual spread over a population as large
as possible. As Douglas MacLean has suggested "we might speculate
that some intuitive sensitivity to distributional issues helps
to explain why most hazard comparisons have so little impact on
public opinion and concern."17
c. The Value of a Human Life
One possible explanation for the counter-intuitive
result in the earlier comparison of health risks in Options #
1 and #2 above is that many of us feel that human lives ought
to be treated differently from other costs. A human life has a
special value in our culture and ought to be treated separately
from other things we value, even severe but non-fatal injuries.
To some policy analysts it has, therefore, seemed useful to try
to come up with a single, determinate value for a human life.
There is little agreement, however, among
policy analysts over how a figure for the value of a human life
ought to be set. Since there is no market in human lives, inferences
are frequently drawn from situations in which people reveal what
they are willing to pay for their own safety. But the conclusions
of these indirect tests vary so widely that the most determined
policy analyst is likely to despair of ever being able to put
a single, determinate value on a human life. An investigation
into consumer purchases of smoke detectors, for example, estimates
the value of a life at $175,000;18 whereas a study that looked at
the decisions by drivers to wear seat belts puts the figure closer
to $593,000.19 Yet another study analyzing wage differentials received
by workers on dangerous jobs gives the estimate of $3,200,000.20
Whatever tendencies may underlie consumer
preferences or might serve to explain the different levels of
consumer concern for their own safety, the variation in estimates
drawn from such indirect tests puts the policy analyst who is
eager to establish a single, determinate monetary value for a
human life in an awkward position. In the end he may simply opt
for a figure which is exactly what Dan Usher does in a recent
article on "The Value of Life for Decision-Making in the
Public Sector," where he recommends an amount of $750,000
"increased each year in accordance with the rate of inflation"
and provided that "discretion [is] exercised when the victim
of a calamity can be identified and in decisions involving the
old and the infirm."21
Even more troubling than the difficulty
of obtaining a value for human life, however, is the assumption
by policy analysts that their calculations bear some, let alone
any, relation to what we - those of us living (and dying) within
the culture - might understand that value to be. Commenting on
the current recipes for coming up with a monetary value for a
human life, the economist E. J. Mishan remarked that they make
him think what it would be like "to calculate the value of
a two-week honeymoon for a loving couple by reference to their
anticipated outlays (including foregone earnings) plus perhaps
an allowance for the probability of non-consummation owing to
the frigidity in either."22
Putting a price on life is sometimes seen
as an example of the large scale computations that have become
so much a part of modern politics which "bring with them,"
as the philosopher Stuart Hampshire has written, "a coarseness
and grossness of moral feeling , a blunting of sensibility, and
a suppression of individual discrimination and gentleness."23
But to the charge that putting a price on life shows "a coarseness
of moral feeling," the policy analyst can reply that governments
cannot avoid the trading of lives for money since they are responsible
for programs in public transportation, national defense, environmental
protection where lives are saved or lost at a price. Since governments
cannot avoid trading lives for money, they might as well set the
terms (the value of a human life) under which the trading takes
place. Indeed we need not get all worked up about putting a price
on life because the lives for which we seek to find a value are
statistical lives. As Thomas Schelling has explained, "what
the government buys if it buys health and safety is a reduction
in individual risks. The lives saved are usually a mathematical
construct, a statistical equivalent to what, at the level of the
individual, is expressible as a longevity estimate but not a finite
extension of life."24 By deciding to adopt this or that public
program, by deciding, say, to raise or lower auto-emission standards,
a decision is made about the number of lives that are likely to
be saved or lost, but no decision is made, so the claim runs,
about the life or death of identifiable individuals. Again as
Schelling has put the matter, life and death decisions for specific
individuals do indeed involve "anxiety and sentiment, guilt
and awe, responsibility and religion . . . But most of this awesomeness
disappears when we deal with statistical deaths, with small increments
in a mortality rate in a large population."25
And to the charge that putting a price on
life allows government agencies and their officials to "play
God," the policy analyst has this reply:
d. Risky Situations of Relative Urgency
Still many are made nervous by the thought
of a "price" on life. It is difficult to get rid of
the impression that "putting a price" on life somehow
misses the more fundamental point that life is "beyond price."
Faced with the imminent death of persons whose actual (non-statistical)
lives are in danger, we respond as if we believed that life was
sacred and not just another commodity. We have an extraordinary
determination to engage in the rescue of individuals whose lives
we know to be in danger, a determination that is apparent in efforts
to save a small child caught in a well, miners trapped in some
passageway far beneath the surface of the earth, or passengers
lost at sea. In these cases people are willing to go to almost
any lengths, without much concern for "cost," to save
the lives of those at risk.
Imagine that we are faced with the business
of determining policy in the long term for, let us say, mining
safety. We might very possibly conclude that "in some cases,
for the price of a rescue, we could save a much larger expected
number of lives through various safety measures."27 From the
perspective of cost-benefit analysis, "fewest lives would
be lost if the entire budget is spent on prevention of accidents
and on easy rescues, and no heroic or extraordinary rescues are
attempted in case of disaster."28 But now imagine that we adopt
such a policy. Any attempt at heroic rescue of miners will divert
resources away from the installation of safety equipment that
will save more lives in the long run. But what would it be like
to stand by while several miners are lost who might otherwise
have been saved but at a cost that has been calculated to be not
worth the price?
Here the prescriptions of cost-benefit analysis
diverge from what we urgently feel is the right thing to do. "Put
a price" on life and include that "price" along
with other costs and benefits in a total risk cost-benefit package
and surely a result will emerge - even if the price on human life
is set very high - that on some occasions at least the rescue
of a person stranded at sea or buried in a mine will be "so
expensive as not to be worth its cost."29Yet we appear to
be willing to accept a considerable amount of inefficiency or
cost-ineffectiveness in pursuit of what we believe is more important:
saving the lives of those who are immediately at risk. Why not
then include in a cost-benefit analysis, not only lives saved
and lost, but also some measure of the psychological effects and
mental disturbances that persons are likely to experience as a
result of being barred from attempts at heroic rescue? There are
at least three objections to be made to this proposal.
First, the significance to oneself of being
the kind of person who cares enough in situations of extreme urgency
is not the sort of thing that can be captured by the narrowly
economic values employed by cost-benefit analysis. To do so the
method would have to expand its conception of value. Second, being
the kind of a person who comes to the rescue of someone in distress
tends to be experienced as part of what makes life itself worth
living, as valuable for its own sake, apart from what good it
may produce. Whatever value assigned to it by cost-benefit analysis,
there will always be something more of value, i.e., the intrinsic
worth of being this kind of person, that the analysis fails to
capture. Finally, when we respond to others in situations of distress,
we do so without too much thought about how else we might spend
our time. We respond sympathetically and spontaneously. Stepping
back to make these decisions by cost-benefit analysis may endanger
these more or less spontaneous acts of human fellowship, "may
profane things that must be held sacred," as Alan Gibbard
has suggested, "things that, because of who we are, we must
hold sacred if our lives are to be deeply rewarding."30
No doubt there are some policy analysts
who may simply wish to dismiss our feelings of urgency in cases
of heroic rescue as another example of our unsophisticated judgments
about risks. On this view we should neither be surprised nor overly
concerned that the analysis points one way and our feelings another:
"there is nothing about risk cost-benefit analysis, even
in an idealized version, that guarantees the humane result."31
We should expect it to deviate "from moral judgments in which
we place great confidence,"32and in those situations where
it does, we should be open to reforming or replacing our moral
judgments, which are in any event hopelessly confused, with the
prescriptions of the analysis.
But anyone who wishes to defend cost-benefit
analysis as a reliable guide to policy concerning risks with an
argument based on the idea of hypothetical consent cannot simply
dismiss cases of heroic rescue as one more example of the failings
of common sense. Indeed, Leonard and Zeckhauser look for ways
to accommodate our feelings of urgency, acknowledging that "some
social values will never fit in a cost-benefit framework and will
have to be treated as "additional considerations" in
coming to a final decision."33 But since they offer no principled
way of how to bring in our feelings of urgency, their solution
is inadequately ad hoc. If some values cannot be handled
by the cost-benfit criterion itself but are still to be given
some weight as "additional considerations," the method
begins to look less and less like a neutral procedure that can
be applied more or less automatically. Leonard and Zeckhauser
seek to console potential critics who worry that cost-benefit
analysis is liable to be open to abuse with the thought that "its
ultimate grounding in analytic disciplines affords some protection."34
But to the extent that some social values have to be taken into
account on an ad hoc basis, such grounding affords that
much less protection.
e. Risks and Rights
Individual rights make up another area with
which cost-benefit analysis is ill-equipped to deal. There are,
of course, many decisions we make where rights play no role at
all. But in the arena of risks to life, health and safety this
is not so: rights play a very critical role indeed.
Rights constitute what might be called a
minimal respect for persons and constrain persons from treating
others in certain ways. Rights do not allow trade-offs. They cannot
be brought together into one single homogeneous total. Each person's
rights count separately and have their own independent moral value.
My rights are, therefore, incommensurable with your rights; each
placing limits on the actions of the other.35
Imagine that we are faced with the task
of developing a national policy concerning secondhand cigarette
smoke in enclosed public spaces. If we think of the effects on
smoker and non-smoker alike, there are a clear set of costs and
benefits on both sides. There is the irritation from the tobacco
smoke felt by the non-smoker as well as the discomfort and frustration
experienced by the smoker who is asked to refrain from smoking.
If we assume that a link between lung cancer and secondhand smoke
has been established, there will be costs associated with the
longer term health effects to both the smoker and non-smoker.36
In an enclosed space, such as the cabin of a commercial airline,
it may not be easy for a non-smoker to escape the effects of secondhand
smoke. Recently smoking has been banned by several commercial
airlines on short-term flights. It is possible to imagine that
some calculation of costs and benefits went into these decisions:
the time and savings from no longer having to maintain separate
sections for smoker and non-smoker is set against the minimal
discomfort the habitual smoker will have to endure on a short
flight. For transcontinental flights it may be believed that the
costs of discomfort to smokers are too great to be outweighed
by other benefits.
But now we live in a culture that takes
rights seriously, in particular rights to persons and property.
If a person is in an enclosed space from which she cannot easily
walk away, the tobacco smoke she experiences from someone else's
cigarette is not only a cost, but a violation of her right not
to be harmed without her consent. As Peter Railton has put it:
"each time I send some of my tobacco smoke your way, you
suffer some small physical change, not for the better."37 On
a rights-based view, each person's rights set up a boundary across
which others are not permitted to go. And although the change
that a person suffers from the tobacco smoke imposed upon him
may be very small, on a rights-based view what matters is "whether
or not a boundary was crossed, not the magnitude of the consequences:
shoplifters have been prosecuted for stealing a pack of chewing
gum."38 Of course, smokers can claim that they have rights
too and they do, only each person's rights are brought up short
when they bump up against the boundaries of somebody else's rights.
Smokers are free to smoke so long as they respect the boundaries
of others. They are free to smoke in the confines of their own
room. In an enclosed public space, the smoker's right to smoke
stops, like the right to swing one's arm, at the tip of somebody
else's nose.39
A public policy based on rights will mean
either outright prohibition of smoking in enclosed public spaces
or the provision of segregated smoker and non-smoker sections
where this is feasible. The provision of smoker sections would
appear to balance rights against the discomfort to non-smokers
of being asked not to smoke and has the look of a cost-benefit
solution. But it is important to recognize that the rights of
non-smokers set the bounds within which different strategies of
how to implement a policy that observes those rights might be
entertained. Rights are not "additional considerations"
to be taken into account in some ad hoc manner as a supplement
to maximizing total benefit. Rights enter into the making of policy
at the foundational level, as it were, and other considerations
such as the comfort of smokers can only be entertained after the
rights of non-smokers have been taken into account.
Workplace air pollution presents similar
problems to the risks of secondhand smoke only here there are
obvious benefits to be gained from the polluting activity. There
is great incentive, no doubt, to keep production costs as low
as possible. Nonetheless there appears to be general agreement
that "workplace air pollution violates workers' rights."40
Current public policy reflected in the Occupational Safety and
Health Act is rights-based: permissible exposure levels for any
toxic substance must ensure that "no employee will suffer
material impairment of health or functional capacity."41
However if we extend a rights-based solution
into other areas, such as outdoor air pollution, most risk-imposing
activities would have to be prohibited. The extremity of rights-based
public policies concerning risks to safety and health have inclined
some policy analysts to disregard rights considerations altogether.
Since cost-benefit analysis is unsuited to handle these sorts
of considerations anyway, such an inclination may be more self-serving
than considered. Nonetheless it is true: rights leave little room
for balancing or compromise and perhaps in the arena of outdoor
air pollution we arrive at the limits of their usefulness in setting
policy concerning risk. But if rights place an unusually strict
limit on the levels of risk to which citizens may justifiably
be exposed, it is also true that risks to which people are exposed
are permissible if it can be shown that the bearers of those risks
have given their consent. Only consent can turn a potential violation
of a right into a permissible act: "Consent, as it were,
opens up boundaries so that a border-crossing is no longer a moral
offense."42 For this reason it makes sense to reconsider the
role actual consent might play in the legitimation of risky activity.43
IV. Bringing Consent Back In
Because of the moral appeal of the notion
of consent, proponents of cost-benefit analysis have tried to
seek a justification for the technique in a form of consent, albeit
hypothetical. On this interpretation it is legitimate to impose
risks on people without their actual consent so long as the benefits
are sufficiently great, so long as the benefits of so doing outweigh
the benefits of alternative courses of action. Risk-impositions
proposed by the analysis are justifed because reasonable people
prefer alternatives where benefits exceed costs and so would choose
the same outcomes as the analysis recommends if they could go
through the process themselves. But this defense of the technique
only works if the costs and benefits that are the input of the
analysis are appropriate and comprehensive. Since they are neither,
a defense of cost-benefit analysis as a form of consent does not
succeed.
Cost-benefit analysis cannot yield the same
result as indivdual consent because it fails to respect fully
the distinctiveness of people's responses to risks, or to do justice
to the morally significant ways risks can be distributed, or to
give proper weight to the importance we attach to human life in
situations of felt urgency. It fails to capture things of great
value to us, such as our concern for autonomy and rights, or captures
them in a way that does not reflect the special significance they
have for us. For these reasons we should not be persuaded to allow
cost-benefit analysis to determine public policy, to do, as it
were, our talking for us. What we need are not improved analytic
techniques or more finely tuned ways of calculating costs and
benefits, but greater opportunities for participation by those
affected by public policies concerning risks in the decision-making
process.
That process is, of course, a political
process and some policy analysts despair of our ever coming to
any sort of decision, let alone reasonable ones, by that means.
"An unfettered political process," Leonard and Zeckhauser
fear, "provides no guarantee that it will seek efficiency
or pay attention to the general welfare. It also . . . may not
take advantage of the best available information."44 Cost-benefit
analysis may not be "perfect," they admit, but even
so "we should be able to anticipate better outcomes than
we would achieve by 'muddling through.'"45
But "muddling through" may be
the only just way to make public choices involving risk
because these decisions raise questions of equity to which cost-benefit
analysis is blind and about which it is has nothing to tell us.
The issues of equity raised by decisions which impose risks on
some to the benefit of others, can only be settled in a dialogue
among those who are likely to be affected or through their representatives,
and perhaps not even settled then. Leonard and Zeckhauser point
out that the political process sometimes leads to stalemate,46 and
"that's true, too,"47 but we should not then turn to a
method that is not equipped to make such decisions in the first
place; we should look for ways to unblock the impasse, for better
ways to talk with each other, to negotiate and find a compromise.
Our responses to risks presuppose divergent
interests and ideals that cost-benefit analysis neither accomodates
nor grasps. These divergent interests and ideals are best dealt
with by a pluralist approach, not merged into one homogeneous
total as they are under cost-benefit analysis.48 A democratic political
process works in an essentially pluralist manner and is designed
to handle, however messily, the divergent interests and ideals
of different people. It is also important to recognize that we
do not only want a method that will help us to "anticipate
better outcomes," we want a method that achieves its outcomes
in appropriate and fair ways. "It would not do, for
example," as Douglas MacLean has observed, "to replace
trial by jury or democratic elections with technocratic analytic
decision-making techniques, even if these techniques...would achieve
better results."49 And it will not do because the legitimacy
of the outcome in these cases depends in part on the openness
and fairness of the process.
But if people are to become more involved
in making public policy decisions concerning risks to life, health
and safety, how are we to respond to the psychological studies
which show that we are such poor judges of probabilities and that
our judgments about risks are frequently "irrational, if
not perverse?"50 Two responses at least are worth stressing:
One is that we should make every effort
to educate citizens to be better at probabilistic reasoning, and
to supply them with relevant information in terms they can understand.
If statistical information is required, we should make it more
understandable by removing as much of the jargon as possible.
We might have reason to hope that over time people will become
better at making probabilistic decisions, but given the tenacity
of people's inability to assess probabilities, on the job training
is not likely to do the trick. Our susceptibility to framing effects
might be partially overcome by being careful to frame options
in a number of different ways, although a good many framing effects
might be given alternative explanations (see below). It may even
be wise to hire those very researchers, who study the systematic
biases to which we are prone, to serve as counselors in the decision-making
process and to share their knowledge to help citizens or their
representatives resist some of the more obvious distortions to
which they may be inclined but which they may otherwise fail to
notice.51
A second possible response is to point out
that the findings of the risk perception studies only succeed
in showing that people are irrational in their attitudes towards
risk by assuming a fairly narrow conception of rationality. Some
of our presumed irrationalities and inconsistencies can be explained
in other ways, such that on a broader view of the findings our
actual choices turn out to be quite reasonable after all. For
example, the studies show that "loss aversion" is quite
pervasive, but is it irrational? "If your acquaintances,
your boss, or your constituents," Douglas MacLean has suggested,
"are more likely to hold you responsible for the losses that
result from your risky decisions than for the lost opportunities
that result from choosing to avoid risks, then choosing to avoid
a loss rather than maximize the expected outcome would seem to
be an eminently prudent strategy."52
Specific to the conception of rationality
presupposed by the psychological studies is the neglect of autonomy.
The control people believe they have over risks has sometimes
been offered to explain the apparently irrational preference many
people show for driving rather than flying. But people are not
only concerned about the chance of dying, but about "what
life is like while they are living it."53 We may indeed underestimate
our chances of survival in those situations where we believe we
have some degree of control over the risks we bear, but we also
can be seen to value that control. As most of us know too
well: "Trade-offs between quality and quantity of life are
made all the time in personal decisions about health and safety:
Mark Twain told that he could add five years to his life by giving
up smoking and drinking, reportedly quipped that five years without
smoking and drinking weren't worth living."54
Re-describing an option can lead people
to reverse their preferences as the research of Tversky and Kahneman
shows. But a number of these preference reversals are also open
to alternative explanations, suggesting that there may be more
to our ways of thinking and reasoning than is to be found in a
conception of instrumental rationality:
A suburban homeowner, let us call him George,
is willing to pay his neighbor's son $8 (but no more) to mow his
lawn, but refuses to mow his neighbor's (same-sized) lawn for
$20. On a narrow economic view of rationality George is not behaving
rationally, since he should treat foregone income on a par with
out-of-pocket expenses. But now imagine that we re-describe the
latter option: George's neighbor will contribute $20 to charity
if George will mow his lawn. If George elects to mow his neighbor's
lawn, we have induced a preference reversal.55
But for George's decision to mow or not
to mow to reveal an inconsistency in his preferences, it is necessary
to assume that "mowing his neighbor's lawn for charity,"
re-describes essentially the same option as the one he
was given initially.56 Indeed all cases of preference reversal require
the assumption that re-framing does not alter the substantive
content of the option. But this is a considerable assumption.
Is "mowing for charity" substantively equivalent to
"mowing for money?" If George elects to mow his neighbor's
lawn under this new description, has he acted irrationally or
does his decision reflect a different approach altogether?57 Perhaps,
George does not see himself as the sort of person who would do
that sort of thing: "he simply does not think of himself
as the kind of person who mows other people's lawns for money."58
To do so conflicts with his self-image.
We are not only ends-oriented, but
ideal-oriented. We do not just care about where we end
up, we care about the kind of people we have to become in order
to end up one place or another."Mowing someone else's lawn
for charity" is not the same as "mowing someone
else's lawn for money." It is a different sort of activity
entirely.
Something along these lines helps to explain
the apparent irrationality of acts of heroic rescue. When the
life of an identifiable individual is in imminent danger and there
is some chance of saving that person, however remote, to stand
idly by disturbs our sense of self. There is not only value in
lives saved; there is value in being the kind of person who will
go to heroic lengths to rescue others. To stand idly by may make
it difficult for a person to live with himself afterwards, not
only because he must live with a death, but because he must live
with the sort of person he has become by his failure to rescue.
To stand by is not only costly, it is dehumanizing.59
V. The Role and Limits of Consent in
Justifying Risk Decisions
Although I am convinced that a consent-based
approach is the only fair and appropriate way to justify risky
activity, the approach is not without its problems and a number
of points stand in need of closer attention and fuller discussion
than I have room for here. I would, however, like to mention in
closing a few points that will, I believe, require greater clarification,
if a consent-based approach is to work.
First, it should perhaps by now be obvious
that our minimal first principle cannot hold in the form it was
originally stated. If we require actual consent to each and every
risk of harm that is imposed, much of what we do in the course
of our daily lives will have to be ruled out, since it will be
impossible to obtain that consent. Some have argued that many
of the risks to which we are exposed are too trivial or at least
are not sufficiently important to require consent. Thus, it has
been claimed, for instance that "you are not morally required
to obtain the permission of everyone who might be in the path
of your car should it go out of control on your way to the post
office....Nor must you ask the consent of your neighbor before
you...make a fire in the wood stove, although the risks to them
of fire is increased somewhat."60 But we shall need some way
of distinguishing the trivial cases that do not require consent
from the nontrivial ones. What's to distinguish, for instance,
the (supposedly) trivial case of driving to the post office from
the following example: "Jones has a bad case of the flu.
When she breathes, the flu virus gets circulated through the ventilation
system of the apartment building where she lives. Among the other
inhabitants of the building are a number of elderly people in
rather [poor] health. By staying in her apartment and breathing,
Jones imposes a nontrivial risk of death on them, for the mortality
rate of elderly people in [poor] health who contact this kind
of flu is, we may suppose, far from negligible."61 The difficulty,
of course, is not just that it is not easy to come up with a set
of criteria that will pick out the right cases, but that it is
far from clear that some of the so called "ordinary"
cases are all that trivial.
Second, once we eliminate the trivial cases,
if indeed there are such cases, it remains obvious that we shall
not be able to obtain the actual consent of persons in most cases
of risk-imposition. Many risks, such as the risks imposed on people
from the operation of coal-burning and nuclear power plants, involve
externalities and public goods. In these cases risk-imposing decisions
will be centralized and public policy will partly determine the
levels of risk to which people are exposed by setting standards
for, say, the venting of radioactivity by nuclear power plants
or the release of toxins into the atmosphere by chemical factories.
The model of doctor-patient, where a doctor seeks the prior consent
of a patient before, say, imposing risks of operating on his left
lung, cannot serve as a paradigm for most risk decisions. If cost-benefit
analysis is not the answer, we shall need to be clearer about
the ways and means people can participate in public decisions
that impose risks on them.
For consent to play a legitimating role
in the making of these risk-decisions, it clearly cannot come
into play only in the final stages of the decision-making process.
Potential risk-bearers will have to be involved at every stage
of the process, in formulating, implementing, and adopting public
policy. This, in turn, will surely require that present opportunities
for participation in decision-making be enlarged, and in some
situations imaginatively created. Along these lines in the area
of workplace pollution, Mark McCarthy has urged that "workers
need more than the exit vote of leaving a job with intolerable
risks,"62 that they need to be more involved in the decisions
by which those risks are controlled. He has suggested not only
the creation of labor-management health and safety committees
to help to enforce federal standards and to address unregulated
workplace hazards but the incorporation of health and safety concerns
in the collective bargaining process. He also makes the recommendation
that there be greater participation by the affected parties, i.e.,
representatives of the industries and workers involved, in the
drafting of regulations at the federal level.63
Third, in the course of improving opportunities
for greater participation, we also need to become clearer about
what forms of participation make for morally acceptable decisions.
Given the moral pedigree of consent, some have been tempted to
attribute its legitimating power to consent in all its many different
forms and varieties. Thus, for example, some believe that merely
by consenting to work in a factory where one knows in advance
that there are airborne hazards, a worker thereby gives his consent
to the risks he will bear, or that by purchasing a home near a
nuclear power plant, one consents to the risks to which one is
exposed in the likelihood of a nuclear accident. No doubt for
this sort of tacit consent to be meaningful it must be
true that one has had an opportunity to choose among a set of
alternatives that are viable and risk-free and that one was really
fully informed about potential risks. But even if these conditions
are met, it is unlikely that consenting to work at a factory where
one knows there are risks constitutes consent to those risks.
Judith Thomson has argued,64 persuasively I believe, that in consenting
to walk through a park late at night that one knows to be unsafe,
one does not thereby consent to being mugged, if that should turn
out to happen. In thinking of ways to bring consent back into
the process of justifying risky activities, we need to be clear
about what counts and what does not count as "consenting
to a risk."65
Finally, it is also necessary to acknowledge
that in looking for ways for potential risk-bearers to participate
more fully in the decision-making process, we may be calling on
skills and habits of minds with which citizens have little experience
or experience of the wrong kind. Needless to say, our present
political institutions and regulatory practices seem to encourage
citizens to adopt an adversarial posture. In negotiations interested
parties often see themselves in a trial-like process, inclined
to assert their positions in the most extreme ways; they may be
neither capable or open to arriving at a consensus on public policy
concerning risk. No doubt there is some truth to the charge that
we live in an adversary culture.66
Insofar as it makes sense to speak this
way about us at all, a vision of citizenship as largely a defensive
strategy and chiefly, or first and foremost, a matter of rights
designed to protect the citizen from all too powerful governors
can be traced back to the founding of the Republic. For a consent-based
approach to the problem of risk-impositions to work in the ways
that I have outlined this vision of citizenship may itself have
to undergo transformation. And many of us may have to learn a
new set of civic virtues if there is to be any hope of our arriving
at a consensus on some of the more pressing public policy questions
concerning risks to our health and safety.
Notes
I am indebted to all the participants
at the Working Session at Georgetown University Medical Center,
Washington, D. C., September 21-24, 1989 for their criticisms
of an earlier draft and to Sissela Bok, Stephen Graubard, Eli
Hirsch, Owen Flanagan, Jerry Samet, and William Talbott for their
helpful suggestions.
1. The examples are drawn from Lorraine
Daston who offers a brilliant analysis of the attitudes to life
insurance, security, and risk in the early modern period in "The
Quantification of Risk in the Enlightenment," unpublished
manuscript.
2. R. L. Solomon and J. D. Corbit,
"An Opponent-process Theory of Motivation," Psychological
Review 81 (2), 1974, pp. 119-45.
3. Thomas Schelling, "The Mind
as a Consuming Organ," in The Multiple Self, edited
by Jon Elster (Cambridge: Cambridge University Press, 1986) pp.
177-95. As Schelling himself notes "in sky-diving and horror
movies the glands that secrete euphoriant stimuli are encouraged
to be deceived, but not the control centres that would make us
sick."
4. Annette Baier, "Poisoning
the Wells," in Values at Risk (Totowa, N. J.: Rowman
& Allanheld, 1986), p. 49.
5. Robert Nozick who gives a fairly
sophisticated account of rights in his book Anarchy, State
and Utopia (New York: Basic Books, 1974), p. 75, notes that
"no natural-law theory has yet specified a precise line delimiting
people's natural rights in risky situations," but does not
go on to offer such a theory himself. Samuel Scheffler observes
that "while traditional lists of individual rights do typically
restrict harmful activity, they are generally silent on the question
of risk," in To Breathe Freely, edited by Mary Gibson
(Totowa, N.J.: Rowman & Allanheld, 1985) p. 81. Judith Thomson
makes a modest, but wonderfully sensitive beginning in her essay
"Imposing Risks," also in To Breathe Freely,
pp. 124-140. Both Mary Gibson's book and Values at Risk,
edited by Douglas MacLean, (Totowa, New Jersey: Rowman & Allanheld,
1986) contain essays that focus on ethical issues raised by government
policy concerning air pollution and the meaning and assessment
of risk. These two books are among the best treatments of these
subjects of which I am aware and I have benefited from them greatly.
6. It would, of course, make matters
so much simpler if every question whether it is permissible to
impose a risk of harm were always reducible to the question whether
it is permissble to cause that harm. But this unfortunately is
not likely to be the case as the following example of Judith Thomson
brings out: "Here are five, who are starving. They can be
saved if and only if Jiggs saves them; but Jiggs will save them
if and only if I cause Smith's death by dropping a very heavy
weight on his head. Most people are inclined to think I may not
do so. But now here are another five, who are also starving. They
can be saved if and only if I fly out in my plane and drop them
a food parcel. If I do drop the parcel, I impose a risk of death
on Smith, for Smith is out in a nearby meadow, tending his sheep,
and a sudden gust of wind just might, conceivably, blow the falling
parcel onto Smith's head. Is it permissible for me to take that
chance? Of course. The risk is utterly trivial. And I think we
do feel inclined to go on saying it was permissible for me to
take that chance even if, in the event, a sudden gust of wind
does blow the food parcel onto Smith's head." To Breathe
Freely, pp. 134-35.
7. See Patrick Derr et al, "Worker/Public
Protection: The Double Standard," Environment 23,
no. 9, 1981 for a similar proposal.
8. Amos Tversky and Daniel Kahneman,
"The Framing of Decisions and the Psychology of Choice,"
Science 211, 1981, pp. 453-8
9. Amos Tversky and Daniel Kahneman,
"Can Normative and Descriptive Analysis be Reconciled"
Center for Philosophy and Public Policy project funded by the
National Science Foundation, grant number SES-8317726, RR-4, (March
1987)
10. See Richard H. Thaler, "Towards
a Positive Theory of Consumer Choice," Journal of Economic
Behavior and Organization, 1, (March 1980), pp. 39-60.
11. Originally reported by Barbara
J. MacNeil, Stephen G. Pauker, Harold C. Fox, Jr. and Amos Tversky,
"On the Elicitation of Preferences for Alternative Therapies,"
New England Journal of Medicine, 306, (May 1982), pp. 1259-62,
described by Amos Tversky and Daniel Kahneman in "Can Normative
and Descriptive Analysis be Reconciled" and summarized in
Philosophy & Public Policy Report, Vol. 8, Number 1
(Winter 1988), p. 4.
12. Philosophy & Public Policy
Report, Vol. 8, Number 1 (Winter 1988), p. 3.
13. Originally reported by Baruch
Fischoff, "Predicting Frames," Journal of Experimental
Psychology: Learning, Memory, and Cognition, 9, (January 1983),
pp. 103-16, described by Amos Tversky and Daniel Kahneman in "Can
Normative and Descriptive Analysis be Reconciled" and summarized
in Philosophy & Public Policy Report, Vol. 8, Number
1 (Winter 1988), p. 4.
14. Herman B. Leonard and Richard
J. Zeckhauser, "Cost-Benefit Analysis Applied to Risks: Its
Philosophy and Legitimacy," in Values at Risk, edited
by Douglas MacLean, pp. 31-48.
15. Ibid., p. 36
16. The example, modified slightly,
comes from Nicholas Rescher, RISK: A Philosophical Introduction
to the Theory of Risk Evaluation and Management (Washington,
D. C.: University Press of America, 1983) p. 5.
17. Douglas MacLean, "Social
Values and the Distribution of Risk," in Values at Risk
(Totowa, N. J.: Rowman & Allanheld, 1986), p. 78. The
example is a variation of one of several that MacLean gives in
his essay in order to show how different risk distributions create
a problem of equity for risk cost-benefit analysis. It should
perhaps be noted that Samuel Scheffler has argued that a cost-benefit
analysis need not rely on a scale of measurement to compare costs
and benefits that is purely aggregative and he gives a rough indication
in The Rejection of Consequentialism (Oxford: Clarendon
Press, 1982) Chap. 4, of how distribution-sensitive principles
of comparison might, at least partially, be developed.
18. R. Dardis, "The Value of
Life: New Evidence from the Marketplace," American Economic
Review, vol. 70 (December 1980), pp. 1077-1082.
19. Glen Bloomquist, "Value
of Life-Saving: Implications of Consumption Activity," Journal
of Political Economy, vol. 87 (June 1979), pp. 540-558.
20. C. A. Olson, "An Analysis
of Wage Differentials Received by Workers on Dangerous Jobs,"
The Journal of Human Resources, vol. 10 (Summer 1981),
pp. 165-185.
21. Dan Usher, "The Value of
Life for Decision Making in the Public Sector," in Ethics
and Economics, edited by Ellen Frankel Paul, Fred D. Miller,
Jr., and Jeffrey Paul (Oxford: Basil Blackwell, 1985), p. 191.
22. E. J. Mishan, "Consistency
in the Valuation of Life: A Wild Goose Chase?" in Ethics
and Economics, p. 152. There is no hard and fast rule that
costs and benefits must be construed in narrowly economic terms.
Scheffler has argued this point in The Rejection of Consequentialism.
At the same time Scheffler acknowledges that "of course,
it is much easier to say this than it is to produce a measure
of costs and benefits which is not purely economic, which is sensitive
to whatever genuine diversity of value there may be, and which
provides a practical basis for social decision making. That, presumably,
is one of the reasons why the tendency to rely on purely economic
measures of costs and benefits is as great as it is." See
To Breathe Freely, pp. 78-9.
23. Stuart Hampshire, "Morality
and Pessimism," in Morality and Conflict (Cambridge,
Mass.: Harvard University Press, 1983), p.86 quoted by MacLean,
in Values at Risk , p. 85.
24. Thomas Schelling, "The Life
You Save May Be Your Own," in Problems in Public Expenditure
Analysis, edited by Samuel Chase (Washington, D. C.: The Brookings
Institute, 1968) p. 161-2
25. Ibid., p. 142
26. Dan Usher, "The Value
of Life for Decision Making in the Public Sector," in Ethics
and Economics, p. 191.
27. Alan Gibbard, "Risk and
Value," in Values at Risk, p. 101.
28. Ibid., p. 97.
29. Ibid.
30. Ibid., p. 102
31. Ibid., p. 98
32. Ibid. The content of cost-benefit
analysis is seen differently by different analysts. Some regard
it "as a neutral device that merely structures a decision-problem."
See Douglas MacLean's introduction to Values at Risk. It
orders our wants, looks for ways to make them cohere, and identifies
the most efficient means to obtain our ends, whatever those ends
may happen to be. This is part of its intuitive appeal: it merely
helps us to get what we want, it does not tell us what to want.
For Leonard and Zeckhauser the expressed preferences of
citizens are the appropriate measure of value. Thus, they say
at one point: "risks to lives ought to be assigned the same
value by decision-makers that the individuals at risk themselves
apply." But they also take the position that cost-benefit
analysis is a corrective to our unsophisticated judgments about
risks. It seems to me that they cannot have it both ways. There
is a tension, perhaps all too obvious, between the intuitive justification
of cost-benefit analysis and a defense of it as a corrective to
our unsophisticated judgments. This tension spells further trouble
for the task of establishing the political legitimacy of the technique.
Since its legitimacy hinges in part on its public acceptance,
if citizens do not want what cost-benefit analysis prescribes
it would be rational for them to want, they are likely to be unhappy
with public policies that are based on cost-benefit analysis.
This last point is a point made by Amartya Sen and Bernard Williams
about utilitarian theory in their introduction to Utilitarianism
and Beyond (Cambridge: Cambridge University Press, 1982) adapted
to apply to cost-benefit analysis. There is also considerable
disagreement amoung utilitarian theorists about what preferences
ought to be taken into account by the theory: people's actual
preferences or, to take just one example, only their "perfectly
prudent preferences" (R. M. Hare's view).
33. Herman B. Leonard and Richard
J. Zeckhauser, "Cost-Benefit Analysis Applied to Risks: Its
Philosophy and Legitimacy," in Values at Risk, p.
42
34. Ibid., p. 31
35. For a further discussion of some
of these issues see the introduction by Amartya Sen and Bernard
Williams to their edited volume Utilitarianism and Beyond.
36. There is evidence, some of it
disputed, that secondhand tobacco smoke increases the risk of
cancer. Already in 1980 at the Naval Research Laboratory in Washington,
D. C. James Repace and A. H. Lowrey demonstrated that "the
smoke pollution inhaled indirectly from cigarettes, pipes, and
cigars indoors was not only chemically related to the smoke from
factory chimneys, but routinely occurred at far higher levels
than did factory smoke or automobile exhaust outdoors." See
"Indoor Air Pollution, Tobacco Smoke, and Public Health,
" Science 208 (1980). At about the same time J. R.
White and F. H. Froeb reported in a study of 2,000 subjects over
a ten year period that exposure to indoor tobacco smoke in the
workplace caused a reduction in small passageways in the lung
to the same extent as smoking one to ten cigarettes a day. A more
controversial study by Takeshi Hirayama, the chief epidemiologist
of the National Cancer Center Research Institute in Tokyo, reported
in a study of 142,857 subjects that nonsmoking women married to
men developed lung cancer at nearly double the rate of women whose
husbands did not smoke. "Nonsmoking Wives of Heavy Smokers
Have a Higher Risk of Cancer: A Study from Japan, British Medical
Journal 282 (1981). But about the same time Lawrence Garfinkel
of the American Cancer Society published a study that observed
lung cancer rates in 176,739 nonsmoking women married to husbands
who smoked and found only a small positive result without statistical
significance. "Time Trends in Lung Cancer Mortality Among
Nonsmokers and a Note on Passive Smoking," Journal of
the National Cancer Institute 66 (1981). For a further discussion
of these and other findings see James Repace, "Risks of Passive
Smoking," in To Breathe Freely, pp. 3-30.
37. Peter Railton "Locke, Stock,
and Peril: Natural Property Rights, Pollution, and Risk,"
in To Breathe Freely, p. 92
38. Philosophy & Public Policy
Report, Vol. 5, Number 3 (Summer 1985), p. 2.
39. Ibid.
40. Ibid., p. 3.
41. Ibid.
42. Ibid., p. 2.
43. It is sometimes thought that
a violation of a person's rights might be justified if one compensates
him afterwards. If this were so, this could become another way
to turn a potential violation of a right into a permissible act,
implying yet another way to justify risk-impositions. On this
view consent would not be required and risk-impositions would
be justified so long as one compensated each and every person
for any harm that occurred as the result of one's having exposed
that person to the risk of harm. But it seems to me that a readiness
to compensate a person cannot turn his right not to be harmed
without his consent into a morally acceptable act. To harm a person
without his consent so long as one is willing to compensate afterwards,
pre-empts his right to decide things for himself, treats him as
a mere means to one's own ends, and enables those who have sufficient
resources to engage in harmful activities more readily and with
less compunction than those of lesser means. One way not to deal
with the risks imposed on non-smokers from secondhand cigarette
smoke is by placing an excise tax or surcharge on cigarettes since
it would simply allow those who could afford the increased cost
of cigarettes to pay and pollute. An argument for regarding standards
of safety and health in the workplace as a matter of workers'
rights whose violations are only permissible with their consent
is to block the option otherwise open to firms to pay compensation
costs rather than making the workplace a safe and healthy environment
within which to work. For a related discussion of these issues,
see Peter Railton, "Locke, Stock, and Peril: Natural Property
Rights, Pollution, and Risk," in To Breathe Freely,
especially pp. 112-17. Railton has also expressed surprise that
a willingness to compensate could ever, on its own, justify
the violation of someone else's rights: "It would seem to
be a clear case of using someone - not necessarily misusing him,
but using him - if I were to harm or endanger him in order to
pursue my own interests, but then made sure to provide after-the-fact
compensation at a level he would have to take or leave."
p. 115.
44. Herman B. Leonard and Richard
J. Zeckhauser, "Cost-Benefit Analysis Applied to Risks: Its
Philosophy and Legitimacy," in Values at Risk, p.
47.
45. Ibid.
46. Ibid., p. 37
47. Shakespeare, King Lear,
Act V, Scene III, Gloucester: "And that's true too."
48. In their effort to legitimate
cost-benefit analysis as a form of hypothetical consent Leonard
and Zeckhauser acknowledge that "cost-benefit analysis [only]
coincides with universal individual consent when all individuals
in the community are affected similarly under each alternative
considered. It is much more difficult to determine whether the
benefit-cost criterion is a useful means of defining 'hypothetical
consent' by the community when individuals have widely different
interests." "Cost-Benefit Analysis Applied to Risks:
Its Philosophy and Legitimacy," in Values at Risk,
p. 36
49. Douglas MacLean, Introduction
to Values at Risk, pp. 4-5
50. Philosophy & Public Policy
Report, Vol. 8, Number 1 (Winter 1988), p. 2
51. See Baruch Fischoff, "Cognitive
and Institutional Barriers to 'Informed Consent,'" in To
Breathe Freely, pp. 180-82. Fischoff has ventured the suggestion:
"If neutrality is the problem, an obvious possibility is
to replace the other party with an actual decision counselor,
like a court-appointed lawyer, entrusted with helping the decision
maker and enpowered to extract information from the other party
or purchase it from other sources (within some budgetary constraint)."
p. 182.
52. Douglas MacLean, quoted in Philosophy
& Public Policy Report, Vol. 8, Number 1 (Winter 1988),
p. 4.
53.. Philosophy & Public Policy
Report, Vol. 8, Number 1 (Winter 1988), p. 2
54. Ibid.
55. The example comes from Richard
Thaler, "Towards a Positive Theory of Consumer Behavior,"
Journal of Economic Behavior and Organization, 1, (March
1980), pp. 39-60 and is reported by Jon Elster in The Multiple
Self (Cambridge: Cambridge University Press, 1986), p. 27.
56. In order for the two options
to be materially equilvalent, it would be necessary to assume
that George, having decided to mow the lawn in return for his
neighbor's donating $20 to charity, also decides not to contribute
$20 that he was planning to make himself to charity.
57. The answer, of course, will depend
on how we understand rationality. On a narrow conception we might
conclude that George has acted irrationally, but that there is
more to life than rational action. Or we may wish to build this
something more into our understanding of rationality and conclude
that there is more to rationality than is to be found in the narrow,
economic conception.
58. This suggestion in fact comes
from Amos Tversky in correspondence with Jon Elster. See Elster's
Introduction to The Multiple Self, p. 27.
59. Alan Gibbard, "Risk and
Value," in Values at Risk, p. 102.
60. Mary Gibson in the Introduction
to To Breathe Freely, p. xi.
61.. Samuel Scheffler, in To Breathe
Freely, p. 84.
62. Mark McCarthy, "Reform of
Occupational Safety and Health Policy," in To Breathe
Freely, pp. 201-221.
63. Union officials, as Mark McCarthy
is well aware, are not always pleased by proposals for joint labor-management
committees and are reluctant to include safety and health concerns
in the bargaining process. Their worries are also not completely
without reason and need to be taken into account if any restructuring
of present relationships between labor and management were to
occur. Union opposition is expressed on a variety of grounds by
saying that health and safety are rights and workers ought not
to have to give up wages or other benefits to pay for them, that
safety committees are a way to co-opt workers, that management
does not take occupational safety and health seriously enough
and ought to be compelled to improve conditions by stricter national
regulations, that unions have neither the power nor the legitimacy
in this country where only 20 percent of the workforce is unionized
to negotiate with management to improve health and safety conditions
in the workplace, and that negotiated agreements on health and
safety between labor and management open unions up to liability
suits from disabled workers. See Mark McCarthy, "Reform of
Occupational Safety and Health Policy," in To Breathe
Freely, pp. 216-17.
64. Judith Thomson, "Imposing
Risks," in To Breathe Freely, pp. 139.
65. Since certain cases of tacit
consent may be thought to be morally invalid, and may not
count as consent, it should perhaps be noted that there are also
circumstancess in which actual consent is thought to be
morally invalid. Thus in contractual relationships there are a
number of conditions that are generally taken to invalidate the
actual agreement among the parties, even if both parties have
given their consent, to say nothing of the more complex cases
in which courts have refused to uphold workers' agreements to
exempt their employer from liability due to negligence. For a
potential risk-bearer's consent to justify a risk-imposition the
conditions under which both tacit and actual consent are
morally vaild will have to be fully and clearly set out.
66.For accounts of the contrast
between adversary and consensus culture see, Steven Kelman, Regulating
America, Regulating Sweden: A Comparative Study of Occupational
Safety and Health Policy (Cambridge, Mass.: MIT Press, 1982)
and Michael Thompson, "To Hell with the Turkeys! A Diatribe
Directed at the Pernicious Trepidity of the Current Intellectual
Debate on Risk," in Values at Risk, pp. 113-135.
Imposing risks on people is justified if, and only if,
it is reasonable
to assume that they have consented to those risks.7
Imagine that you have operable lung cancer and must choose
between two treatments: surgery and radiation therapy.
Of 100 people having surgery, 10 die during the operation,
32 are dead after one year, and 66 after five years.
Of 100 people having radiation therapy, none die during treatment,
23 are deadafter one year, and 78 after five years. Which treatment do you prefer?11
Imagine that the United States is preparing for the outbreak
of an unusual flu epidemic which is expected to kill 600 people,
unless action is taken. Two alternative programs to combat the disease are proposed
If program A is adopted, 200 people will be saved. If program B is adopted,
there is a 1/3 probability that 600 will be saved and a 2/3 probability that no one
will be saved
When the alternatives were posed in these terms in a test survey,
72 percent of the respondents opted for program A, only 28 percent for program B.
A second group was given the same options, but re-described (re-framed) in this way:
If program A is adopted, 400 people will die; if program B is adopted,
there is a 1/3 probability that nobody will die, and a 2/3 probability that 600 people will die
This time only 22 percent opted for the first program, while 78 percent opted for the second.13
If...benefits and costs were fully and appropriately measured
and equally distributed over individuals,we would expect
that the benefit-cost choice criterion would yield the same result
as universal individual consent. In this polar case, consent
and the benefit-cost criterion are equilvalent, and in this sense cost-benefit analysis
can be thought of as a form of "hypothetical" consent by the community.15
Option #1: the death of two children
with an average future life expectancy of 70 years.
Option #2: the incapacitation (say
by a serious bout of influenza)
of 16,000 people for an average
period of 4 days.
For Option #1 the total work-day loss will stand at
2 X 7 X 365 or 51,000 work-days lost.
For Option #2 the total work-day
loss
will be 16,000 X 4 or 64,000 work-days lost.16
The specification of the value of life does not give powers over life and death
to the administrators of public sector projects. It takes such powers away.
Having placed the responsibility for road-building and medical care in the public sector,
we have, knowingly or not, compelled ourselves to decide between your life or mine.
We can allow administrators to act as they see fit. . . Or we can bind these decisions
with rules that make those decisions less arbitrary, less subject to political influence,
and less tragic. Specification of a uniform value of life constrains the choices of administrators
of public sector programs and avoids many situations where one man must give
or withhold the life of another.26