In a closed economy the marginal propensity to consume is 0.60 and the marginal propensity to invest is 0.10. What is the size of the multiplier?

If you can make $25,000 a year teaching, $20,000 a year writing computer programs, $30,000 a year driving a cab, and $40,000 a year as an actor or actress. You have a comparative advantage in

A) teaching. B) writing computer programs C) being an actor or actress. D) one of them but we need more information to know which.

Which of the following is NOT a determinant of demand?

A. prices of other goods B. consumers' tastes C. consumers' incomes D. production technology