When a price is presented in context to another, a firm is

When the average product is at its maximum,

A) the marginal product is increasing as output increases. B) the marginal product is negative. C) it is equal to the marginal product. D) total product is also at its maximum. E) total product is at its minimum.

Goods differ on the basis of whether their consumption is rival and excludable. Explain the terms "rivalry" and "excludability" as they are used to define goods

List the four categories of goods, and define these categories in terms of rivalry and excludability.