[单项选择]A firm in a perfectly competitive market will tend to expand its output as long as:（）
A. its marginal revenue is positive.
B. the market price is greater than the marginal cost.
C. its marginal revenue is greater than the market price.

[单项选择]A perfectly competitive firm will continue to increase output so long as which of the following conditions exists（）
A. Marginal revenue is greater than price.
B. Marginal revenue is positive.
C. Market price is greater than marginal cost.

[单项选择]A perfectly competitive firm will not expand its output beyond the quantity where:（）
A. the market price is equal to its marginal cost.
B. its marginal revenue is positive.
C. the marginal cost is greater than marginal revenue.

[单项选择]In the long run, a perfectly competitive firm will earn（）
A. Small economic profits.
B. Large accounting profits.
C. Zero economic profits.

[单项选择]A competitive firm will tend to expand its output as long as:（）
A. its marginal revenue is positive.
B. the market price is greater than the marginal cost.
C. its marginal revenue is greater than the market price.

[单项选择]Hay farmers are in a perfectly competitive market. Assume that each acre of land produces 100 bushels of hay. The marginal revenue product of an acre of land is then:（）
A. (price of hay per bushel)/100.
B. price of hay per bushel.
C. 100 × (price of hay per bushel).

[单项选择]A firm in a perfectly competitive industry that seeks to maximize profit is most likely to continue production in the short run as long as which of the following conditions exists Price is equal to or greater than :（）
A. average fixed cost.
B. average total cost.
C. average variable costs.

[单项选择]Firms in a perfectly competitive industry will increase their output until which of the following conditions is met（）
A. Total revenue equals price.
B. Marginal cost equals price.
C. Marginal revenue equals average fixed cost.

[单项选择]To remain competitive in the international market place, U.S. industries have recognized that they must attract the brightest, most______ young people available.


A. committed
B. dedicated
C. determined
D. contributed

[单项选择]The demand curve for a firm in a perfectly competitive market is:（）
A. upward sloping.
B. vertical.
C. horizontal.

[单项选择]

Text 1
In a perfectly free and open market economy, the type of employer—government or private—should have little or no impact on the earnings differentials between women and men. However, if there is discrimination against one sex, it is unlikely that the degree of discrimination by government and private employers will be the same. Differences in the degree of discrimination would result in earnings differentials associated with the type of employer. Given the nature of government and private employers, it seems most likely that discrimination by private employers would be greater. Thus, one would expect that, if women are being discriminated against, government employment would have a positive effect on women’s earnings as compared with their earnings from private employment. The results of a study by Fuchs support this assumption. Fuchs’s results suggest that the earnings of women in an industry composed entirely of government employees
A. Government employment, self-employment, private employment.
B. Private employment, self-employment, government employment.
C. Government employment, private employment, self-employment.
D. Self-employment, private employment, government employment.

[单项选择]

Text 4
In a perfectly free and open market economy, the type of employer -- government or private -- should have little or no impact on the earnings differentials between women and men. However if there is discrimination against one sex, it is unlikely that the degree of discrimination by government and private employers will be the same. Differences in the degree of discrimination would result in earnings differentials associated with the type of employer. Given the nature of government and private employers, it seems most likely that discrimination by private employers would be greater. Thus, one would expect that, if women are being discriminated against, government employment would have a positive effect on women’s earnings as compared with their earnings from private employment. The results of a study by Fuchs support this assumption. Fuchs’ results suggest that the earnings of women in an industry composed entirely of government employees would by
A. private employers discriminate against women, but government employers do not discriminate.
B. private employers discriminate against women and it is possible that government employers discriminate too.
C. both private and government employers discriminate with equal effects on women's earnings.
D. both private and government employers discriminate, but the discrimination by private employers has a greater effect on women’s earnings.