The natural rate of unemployment is the
a. unemployment rate that would prevail with zero inflation.
b. rate associated with the highest possible level of GDP.
c. difference between the long-run and short-run unemployment rates.
d. amount of unemployment that the economy normally experiences.
d
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Professor's economics students are constructing models for how gasoline prices change. Maria's model has very realistic assumptions and is quite complex. Anna's model is less complicated and less realistic
Maria's model correctly predicts gas price increases 5% of the time. Anna's model predicts correctly 15% of the time. On the basis of usefulness or "goodness," Professor will give which student's model the higher grade and why? A) Maria's model gets the higher grade because it is more complex. B) Anna's model gets the higher grade because it is simpler. C) Maria's model gets the higher grade because it is more realistic. D) Anna's model gets the higher grade because it predicts accurately more often.
Suppose a firm notices that the price it faces has doubled, but it does not change its level of output. It must be the case that
a. profits have doubled b. the marginal cost curve is falling c. total revenue has decreased d. the original price was less than half of the minimum of the AVC curve e. this situation would not really occur