Economists make assumptions in order to
a. mimic the methodologies employed by other scientists.
b. minimize the number of experiments that yield no useful data.
c. minimize the likelihood that some aspect of the problem at hand is being overlooked.
d. focus their thinking on the essence of the problem at hand.
D
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The freedom of entry and exit in monopolistic competition means that firms
A) enter the market when economic losses are being suffered. B) exit the market when economic profits are being earned. C) enter the market when normal profits are being earned. D) can enter a market to compete for economic profits and leave when economic losses are being incurred. E) find it easy to permanently earn an economic profit.
Refer to Table 16-4. Consider the hypothetical information in the table above for potential real GDP, real GDP, and the price level in 2016 and in 2017 if Congress and the president do not use fiscal policy
If Congress and the president use fiscal policy successfully to keep real GDP at its potential level in 2017, which of the following will be lower than if Congress and the president had taken no action? A) real GDP and potential GDP B) potential GDP and the inflation rate C) real GDP and the inflation rate D) real GDP and the unemployment rate