If S = 300, T = 800, G = 1100, and I = 150, this makes net foreign investment

Advertising by the monopolist

a. is not done because the monopolist has the only supply of the product and doesn't need to advertise. b. would have the effect of shifting its demand curve to the left. c. may lead to expanded production by the monopolist. d. makes no sense because there are no substitute commodities available to consumers.

The aggregate supply curve (short run) is upsloping because:

A. wages and other resource prices match changes in the price level. B. the price level is flexible upward but inflexible downward. C. per-unit production costs rise as the economy moves toward and beyond its full- employment real output. D. wages and other resource prices are flexible upward but inflexible downward.