A radio signal broadcast through the air is ________ in consumption, and listeners are ________.
A. nonrival; excludable
B. rival; excludable
C. rival; nonexcludable
D. nonrival; nonexcludable
Answer: D
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Economic models
A. are always based on realistic assumptions. B. usually predict perfectly. C. can never be tested with real-world data. D. are used to describe cause-and-effect relationships. E. are too simple to be of much use.
The high-school dropout rate usually declines in an economic recession because
A) a decline in job opportunities lowers the opportunity cost of remaining in high school. B) high schools begin to offer more practical and relevant courses. C) laws are passed to prevent teenagers from entering the labor market. D) recessions increase the demand for education. E) tuition and book prices usually fall in a recession.
When the demand curve is vertical and the supply curve is upward sloping,:
a. a rise in the input price that increases marginal cost by $1, decreases the firm's profit by $1. b. a drop in the input price that lowers the marginal cost by $1, doubles the firm's profit. c. a drop in the input price that lowers the marginal cost by $1, decreases the output price by $1. d. a rise in the input price that increases the marginal cost by $1, doubles the output price.
Among the resources used in production are labor and capital.
Answer the following statement true (T) or false (F)