According to human capital theory, all of the following help make workers more productive EXCEPT

If Elizabeth can make 3 pies or bake 6 cakes per hour and Benjamin can make 2 pies or bake 8 cakes per hour, _____.

(A) Benjamin has the comparative advantage in making pies. (B) Elizabeth has the comparative advantage in baking cakes. (C) Benjamin should specialize in making pies. (D) Elizabeth should specialize in making pies.

When the marginal propensity to save declines, the

A) multiplier becomes larger and the IS curve becomes flatter. B) marginal propensity to consume increases and there is no effect on the IS curve. C) multiplier becomes larger and the IS curve becomes steeper. D) multiplier declines and the IS curve becomes steeper.