In which decade did the U.S. federal government first establish a system of agricultural price supports?

Which of the following statements is true?

A) Models help economists to explain the past, but do not help in predicting the future. B) The scientific method used by economists is based on idealism and not empiricism. C) Testing with data enables economists to distinguish between good models and bad models. D) Models that economists use are perfect replicas of reality.

The money supply is very sensitive to changes in the rate of interest

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