In the Keynesian cross diagram, the 45-degree line represents the short-run equilibrium condition that:
A. I ? I p.
B. Y = PAE.
C. Y* = Y.
D. PAE = C + I p + G + NX.
Answer: B
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One of the most important changes in the composition of the labor force in the United States has been
A. the major increase in the number of workers who work full-time out of their own homes. B. the drop in the number of men who only work part-time. C. the pattern of increase in the number of women in the labor force. D. the increase in the ratio of male workers to female workers. E. the major increase in the number of men who work in other countries.
The simplified Keynesian model
A) holds the price level constant. B) holds real GDP constant. C) assumes investment and saving are always equal. D) assumes unemployment is unrelated to real GDP.
At its present rate of output, 200 units, a perfectly competitive firm has variable costs of $10,000 and marginal cost of $50, and accepts the market price of $40 per unit. To improve its profit/loss situation, this firm should
a. increase output b. reduce output but not to zero c. maintain the present rate of output d. shut down e. raise the price
The analysis of oligopolistic behavior is difficult because
a. there are few real-world examples of oligopolies for economists to study. b. oligopolists make decisions independently of each other. c. firms in oligopolistic industries react to each other's behavior in many ways. d. economists have paid little attention to the topic in recent years and so have not yet applied to it the techniques of modern economic theory.