The following does not represent a threat to internal validity of randomized controlled experiments:
A) attrition.
B) failure to follow the treatment protocol.
C) experimental effects.
D) a large sample size.
Ans: D) a large sample size.
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If the aggregate supply curve is vertical, it follows that a change in
A) Real GDP can originate on the demand side of the economy. B) Real GDP can originate on the supply side of the economy. C) Real GDP can originate on either the demand side or the supply side of the economy. D) price level can originate on the demand side of the economy. E) b and d
Which of the following is a macro consequence of a sudden increase in the average level of prices?
A. People lengthen their time horizons. B. Nominal income falls by a smaller percentage than real income. C. People on fixed incomes benefit. D. Uncertainty is greater.