A monopsony is a market structure in which there is a

The short-run average total cost, average variable cost, and marginal cost curves are all U-shaped because of

i. constant total fixed cost. ii. increasing and then decreasing marginal returns as more labor is hired. iii. economies and diseconomies of scale as the plant size increases. A) only i B) only ii C) i and iii D) ii and iii E) i, ii, and iii

In a small open economy, the real interest rate will always be

A) above the world real interest rate. B) below the world real interest rate. C) equal to the world real interest rate. D) independent of the world real interest rate.