The curve representing the set of efficient portfolios must be
a. concave.
b. linear.
c. convex.
d. a ray from the origin.
a. concave.
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Refer to Figure 2-4. A movement from ________ is the result of advancements in plastic production technology
A) V to X B) Y to Z C) W to X D) Z to W
Tan is receiving a holiday bonus of $800. Her marginal propensity to consume is 0.4. How much of her bonus will she save?
a. $200 b. $320 c. $480 d. $600
The number of firms in an oligopoly must be
A. Small enough so that one firm's decisions have a significant impact on the decisions of the other firms in the industry. B. Large enough so that firms cannot coordinate. C. Small enough so that revenues are large enough to support advertising expenditures. D. Four.
Which of the following would be an implicit cost for a firm?
A. The cost paid for leasing a building for the firm B. The cost paid for production supplies for the firm C. The cost of wages foregone by the owner of the firm D. The cost of worker wages and salaries for the firm