Without government, the "for whom" question could not be solved.

Economists may disagree about how to solve an economic problem because they

a. use different models to analyze the problem and its solutions. b. have different political and moral beliefs. c. disagree about the facts of the situation. d. All of the above are correct.

An increase in price causes:

A. a decrease in total revenue due to the price effect. B. an increase in total revenue due to the price effect. C. an increase in total revenue due to the quantity effect. D. an increase in quantity demanded.