The marginal cost of Alexa's Guide to Street People and Their Pets is constant at $5 . Alexa sells 5,000 copies per year at $20 per copy. She would like to increase readership and hold total profit constant. If the price goes to $15, how many copies must she sell?

Goods that can be bought in any quantity desired are called

A) divisible goods. B) indivisible goods. C) invisible goods. D) inferior goods.

The degree of market power exercised by a firm is related to all but

A. The price elasticity of demand for the firm's product. B. The age of the industry. C. Its ability to influence the market price of its output. D. The number and proximity of competing firms.