If Mort's House of Flowers sells one dozen roses to different customers at different prices, economists would consider this an example of

In the ___________, total production keeps growing, but by smaller and smaller amounts.

Fill in the blank(s) with the appropriate word(s).

If the annual returns from an asset increase, the present value of the asset will

a. not be affected b. decrease c. increase d. increase only if there is also an increase in the rate of interest e. decrease only if there is also an increase in the rate of interest