Martin's research (1971) supports the claim that the Interstate Commerce Commission (ICC) was a federal regulatory agency, The ICC was designed to capture market gains for the consumers of railroad services as well as for the railroad

A positive economic statement is one that

A) can be refuted. B) is free of the ceteris paribus assumption. C) is based on a value judgment. D) asserts something about the role of moral behavior in building a strong economy.

Economists use models to:

a. abstract from the complexities of the world. b. understand economic behavior. c. explain and help predict human behavior. d. do all of these.