As the interest rate increases, the opportunity cost of waiting to receive a future amount:

Firms are not likely to include their sunk costs when calculating their true cost of supplying goods if they

A) are calculating their income for tax purposes. B) have been accused by competitors of "dumping." C) have been accused by customers of "price gouging." D) must request price increases from a regulatory commission. E) want subsidies from the government.

The real business cycle theory is most closely related to

a. Keynesian theory. b. monetarist theory. c. the classical model. d. the new Keynesian model.