a worker's hourly wage in dollars.

the purchasing power of a worker's wage.

the productivity of a worker's labor.

the productivity of a worker's capital.

that the marginal product of labor declines as the amount of land combined with labor in a sector increases.

that the marginal product of labor declines as the amount of capital combined with labor in a sector increases.

that the marginal product of labor declines as the amount of labor used in a sector increases.

that the marginal product of capital declines as the amount of labor used in a sector increases.

rises disproportionally.

falls.

rises.

stays constant.

that the country's production possibilities frontier has a constant slope.

that the country's production possibilities frontier is concave to the origin.

that the country's production possibilities frontier may be either concave to or convex from the origin.

that the country's production possibilities frontier is linear (a straight line).

anarchy

oligarchy

embargo

autarky