Advances in chemical and biological applications before World War I (1914–1918) increased agricultural output per acre

Trade

A. allows a person to consume at a point outside his production possibilities frontier. B. limits a person's ability to produce goods and services on her own. C. must benefit both traders equally. D. is based on absolute advantage.

The demand curve a monopolist faces

a. is more elastic than a perfectly competitive firm's demand curve b. is the market demand curve c. is as elastic as a perfectly competitive firm's demand curve d. is not affected by the prices of complements e. will not shift in response to a change in consumer tastes