8. Economists tells us that there are no free lunches. Making AIDS drugs available at low cost in Africa or making Mectizan available for free will mean that consumers elsewhere pay higher prices for their drugs. Should lifesaving pharmaceuticals be priced according to the user's ability to pay? Should, for example, AIDS patients in the United States subsidize AIDS patients in Africa? Should the consumers of Merck's other drugs subsidize the Mectizan program? Should Merck's stockholders?