Threats to internal validity of quasi-experiments include
A) failure of randomization.
B) failure to follow the treatment protocol.
C) attrition.
D) all of the above with some modifications from true randomized controlled experiments.
Ans: D) all of the above with some modifications from true randomized controlled experiments.
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Aggregate demand refers to the relationship between
A) the price level and the quantity of real GDP supplied. B) prices and the quantity of a good supplied. C) the price level and the quantity of real GDP demanded. D) prices and the quantity of a good demanded.
If ZipCo's marginal revenue product curves slope downward, what can we conclude about the structure of the market in which ZipCo sells its product?
a. The firm is a price searcher because price is greater than marginal revenue. b. The firm is a price taker because price is equal to marginal revenue. c. The firm is a price searcher because the price of each resource is constant. d. The firm is a price taker because the price of each resource is constant. e. Nothing.
A narrowly conceived physical quality-of-life index attempts to measure:
a. the gross national income. b. absolute poverty levels. c. the level of social injustice. d. the level of technological progress. e. living standards.
Which of the following is NOT one of the Fed's monetary policy tools?
A) the required reserve ratio B) the income tax rate C) buying and selling U.S. government securities D) the discount rate