An example of an oligopoly is:
a. the commercial airline industry.
b. a stock market

A change in the level of the supply of money

A) increases the long-run values of the interest rate and real output. B) decreases the long-run values of the interest rate and real output. C) has no effect on the long-run values of the interest rate, but may affect real output. D) has no effect on the long-run values of real output, but may affect the interest rate. E) has no effect on the long-run values of the interest rate and real output.

The absence of significant scale economies in 19th century agriculture outside the cotton South produced all of the following except

(a) More equal income distribution (b) Numerous family farms (c) The widespread need for schools (d) Large, corporate farms using the latest technology