A rise in the real interest rate will cause which of the components of aggregate demand to decline?

Which of the following could explain why hockey players earn such high income?

a. All of the following are correct. b. Average careers are very short; the chances of being unemployed are greater than in many other jobs. c. The income effect encourages them to work more as the wage increases. d. Many people want to become hockey players. e. The threat of injury makes the job more exciting than other jobs.

When marginal cost is rising, average total cost is rising

Indicate whether the statement is true or false