Demand applies to which of the following?

If the real interest rate rises, the quantity of investment demanded:

A. will fall. B. will not change. C. will rise. D. could rise or fall.

Patent laws promote technical progress in all of the following ways except one. Which is the exception?

a. They allow other firms to copy successful products as soon as they are marketed. b. They prevent duplication of inventions. c. They provide a stimulus to innovation. d. They provide the inventor with a temporary monopoly. e. They increase a firm's incentive to incur the up-front costs of developing new products.