Refer to the above table. Suppose the price of A increases from $10 to $12. What is the cross price elasticity of demand between A and C?

The political wisdom of choosing a tariff acceptable to the median U.S. voter is

A) a good example of the principle of the second best. B) a good example of the way in which actual tariff policies are determined. C) a good example of the principle of political negotiation. D) not evident in actual tariff determination. E) usually evident in actual tariff determination.

The free-rider problem arises when the number of beneficiaries is large and exclusion of any of them is impossible

a. True b. False Indicate whether the statement is true or false