12. It is often said that if there is risk associated with a medical product, there should be full
disclosure of that risk. Can you defend this claim using the conditions for rational choice, even
when disclosure is not required by law?
Failure to disclose hidden risks is deceptive and therefore ungeneralizable. Selling a product of
any kind implies that it is safe to use, apart from any obvious hazards. If I sell you a chain saw, I
13. A pharmaceutical company has developed a remarkably effective headache remedy and is
deliberating whether to market it over the counter or as a prescription drug. Over-the-counter
sales would be more profitable and would reach far more headache sufferers. However, the
medication doesn’t ease migraine headaches, the most severe type of headache. In fact, clinical
trials suggest that for 10% of migraine sufferers, use of the medication results in twice as many
headaches as before. The effect seems to be permanent, or at least to last as long as the trials.
An over-the-counter label could carry a warning to migraine sufferers, but many of them don’t
realize that their headaches are migraines. If the drug required a prescription, doctors would
dispense it only to patients without migraines. Would over-the-counter sales satisfy the
Difference Principle? Hint. There are two groups to compare when applying the Difference
Principle: those with severe cases and those with mild cases.
Regardless of whether the drug is prescribed or over-the-counter (OTC), the worst-off group will
be migraine sufferers. If the drug is prescribed, they will all have the same migraine headaches
14.* A new flu medication can act as a cure or as a vaccine, but a curative dose is 10 times
larger than a vaccination. The cure and the vaccine always work. Half of healthy persons who
don’t receive the vaccine will get the flu. The medication is in short supply. Health authorities
can use all of it as a cure or all as vaccine, or some combination of the two. What allocation
maximizes utility? What allocation(s) satisfies the Difference Principle? Hint. Utility is
measured by the number of persons who don’t get the flu. There are potentially four groups to
consider when applying the Difference Principle: treated sick patients, untreated sick patients,
vaccinated healthy patients, and unvaccinated healthy patients. The benefit to a group can be
measured by the probability that a person in that group will get the flu.