Which of the following would be an avenue for resolving the inefficiencies associated with majority voting?

In the short run, an increase in the price level induces firms to expand production because

A) they can increase profits by increasing maintenance costs. B) higher prices allow firms to hire more inputs by offering higher prices for inputs, which increases productivity and profits. C) each firm must keep its production level up to the level of its rivals, and some firms will expand production as the price level increases. D) prices of inputs are held constant, so the higher prices for firms' products imply that it is profitable to expand production.

Governments sometimes erect barriers to trade other than tariffs and quotas. Which of the following is not an example of this type of trade barrier?

A) a requirement that the U.S. government buy military uniforms only from U.S. manufacturers B) a requirement that imports meet health and safety requirements C) restrictions on imports for national security reasons D) a requirement that the employees of domestic firms that engage in foreign trade pay income taxes