The theory of purchasing power parity assumes:
A. the real exchange rate is fixed but the nominal exchange rate is flexible.
B. the real exchange and nominal exchange rates are fixed.
C. the nominal exchange rate is fixed but the real exchange rate is flexible.
D. the real exchange rate varies with the inflation differential.
Answer: A
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The following are reasons for studying randomized controlled experiment in an econometrics course, with the exception of
A) at a conceptual level, the notion of an ideal randomized controlled experiment provides a benchmark against which to judge estimates of causal effects in practice. B) when experiments are actually conducted, their results can be very influential, so it is important to understand the limitations and threats to validity of actual experiments as well as their strength. C) randomized controlled experiments in economics are common. D) external circumstances sometimes produce what appears to be randomization.
When a person does not have to pay the full costs for using a scarce resource, then
A) the use of the resource is not affected since society pays for the resource. B) more of the resource will be used. C) the internal costs of using the resource are too high. D) the social costs of the resource are less than they would be if the "correct" amount of the resource were being used.
If profit-seeking entrepreneurs are going to be successful, they must
a. produce a product that the consumers value more than the resources required for its production. b. produce the product more cheaply than their rivals regardless of quality. c. maximize the salaries of high-level management so they will be able to attract people who will work hard. d. charge a higher price than their competitors so they can make economic profits in the long run.
Suppose the banks in the Federal Reserve System have $100 million in transactions accounts and the reserve requirement is 0.10. Ceteris paribus, if the reserve requirement is decreased to 0.07, then excess reserves will increase by:
A. $3 million. B. $7 million. C. $10 million. D. $700 billion.