The practice of selling a product to different customers at different prices when marginal cost is the same is known as:
a. price discrimination.
b. monopoly pricing

What is a major reason international trade is restricted?

A) rent seeking B) to allow competition with cheap foreign labor C) to save jobs D) to prevent dumping E) to eliminate monopolies

A price ceiling caused the gasoline shortage of 1973 in the United States

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