Economists assume that people are motivated by

Which of the following statements is correct?

A) The slope of a curved line is not defined because it is impossible to calculate the slope along a curved line. B) The slope of a straight line changes depending where on the line it is calculated. C) A straight line that slopes upward moving to the right has a positive slope. D) Answers A and B are correct. E) Answers A and C are correct.

The major criticism of real business cycle models is

A) positive technology shocks actually push real GDP above the economy's potential GDP. B) this model relies too heavily on monetary explanations for fluctuations in real GDP. C) negative technology shocks actually push real GDP below the economy's potential GDP D) negative technology shocks are uncommon and can't explain all business cycle fluctuations.