Comparative advantage refers to the ability of a party to produce a particular good at a lower opportunity cost than another party. When trading, countries will always gain by trading the good in which they have comparative advantage in producing. Since the US is trading computers for cars from Germany, the US must have comparative advantage in computer production while Germany has comparative advantage in car production.

Marginal product of labor describes how the total product of labor changes when more labor is hired. If the total product of labor is rising as labor increases, then the marginal product of labor must be increasing.

Marginal product of labor describes how the total product of labor changes when more labor is hired. If the total product of labor is rising as labor increases, then the marginal product of labor must be increasing.

Comparative advantage refers to the ability of a party to produce a particular good at a lower opportunity cost than another party. When trading, countries will always gain by trading the good in which they have comparative advantage in producing. Since the US is trading computers for cars from Germany, the US must have comparative advantage in computer production while Germany has comparative advantage in car production.

Marginal cost is the increase in the total cost of production to produce one additional unit. In this case, we want to determine the marginal cost of producing the fourth good. The total cost for producing three goods is 26 and the total cost for producing four goods is 29. Because total cost increases by 3, 3 is the fourth good's marginal cost.

Marginal cost is the increase in the total cost of production to produce one additional unit. In this case, we want to determine the marginal cost of producing the fourth good. The total cost for producing three goods is 26 and the total cost for producing four goods is 29. Because total cost increases by 3, 3 is the fourth good's marginal cost.

The profit maximizing quantity for the production of goods is the level at which marginal cost equals marginal revenue. This table allows us to easily determine the marginal cost of producing the _n_th good, but it does not give any information about the marginal revenue associated with selling th _n_th good (i.e. market price of the good).

If an increase in the price of pizza causes a decrease in the demand for soda, then the two goods are complementary goods, or goods that are typically consumed together. Thus, the two goods' demand are affected by the demand of the other good. As the price of pizza increases, its demand will likely decrease. The decrease in demand for pizza causes a decrease in demand for soda because the two goods are complementary.

Coal and natural gas are substitutes for each other based on the description given in the question. Therefore, an interruption in the supply of coal will lead to an increase in the demand for natural gas. This will increase both the price and quantity of natural gas.

Coal and natural gas are substitutes for each other based on the description given in the question. Therefore, an interruption in the supply of coal will lead to an increase in the demand for natural gas. This will increase both the price and quantity of natural gas.