If input prices for a perfectly competitive industry remain constant as the output of the industry expands in the long run, the industry supply curve will:

a. have a positive slope.
b. have a negative slope.
c. be perfectly horizontal.
d. be perfectly vertical.


c

Economics

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Newspaper machines and soda vending machines operate very differently. The newspaper machine is a mechanical box. You place your four quarters in the machine and you open the door and low and behold there is a stack of newspapers at your disposal

Most people take one and close the door for the next patron to purchase his own copy. But notice that soda vending machines don't operate the same way. They are also mechanical but when the four quarters are inserted and a selection is made only one can of soda is available for the consumer to purchase. Explain in terms of marginal utility why these two machines are designed so differently?

Economics

Contrary to most thinking, governments play ____ in causing pollution.

A. almost no role B. a large but decreasing role C. a major role D. a reconstructive role

Economics

An example of a renewable resource would be:

A. oxygen. B. trees. C. fish in the ocean. D. All of these are examples of renewable resources.

Economics

Assume that a perfectly competitive firm faces a fixed wage rate of $4 and a constant per-unit cost of capital of $2. If the marginal product of labor and capital are 16 and 6, respectively, then to maximize profits the firm should

A) use relatively more capital. B) use relatively less capital. C) increase all inputs proportionately. D) decrease all inputs proportionately.

Economics