If the multiplier is 10, the marginal propensity to consume (MPC) must be
A. 0.09.
B. 1.0.
C. 0.1.
D. 0.9.
Answer: D
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Based on this figure, if the krone exchange rate is fixed at $0.15 dollars per krone, then the krone is: 
A. overvalued B. undervalued C. devalued D. revalued
When economists describe "a market," they mean
A. any place where, or mechanism by which, buyers and sellers interact to trade goods, services, or resources. B. any place where stocks and bonds are traded. C. a hypothetical place where the production of goods and services takes place. D. a communication network that allows individuals to keep in touch with each other.
In the short-run for a purely competitive market, a manufacturer will stop production when:
a. the total revenue is less than total costs b. the contribution to fixed costs is zero or less c. the price is greater than AVC d. operating at a loss e. a and b
Which of the following would cause the demand for labor to change?
a. c and e. b. A change in the cost of living. c. Changes in the wage rate. d. Movements along the labor demand curve. e. A change in the price of the good produced.