Which of the following is not a determinant of a country's current productivity?

Suppose the stock market rises, causing a rapid increase in consumers' wealth. This would lead to

a. a downward movement along the consumption function. b. a downward shift of the consumption function. c. an upward movement along the consumption function. d. an upward shift of the consumption function.

Opportunity cost is the difference between the nominal and real cost of some action.

Answer the following statement true (T) or false (F)