Time series variables fail to be stationary when
A) the economy experiences severe fluctuations.
B) the population regression has breaks.
C) there is strong seasonal variation in the data.
D) there are no trends.
Answer: B) the population regression has breaks.
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The labor demand curve represents the relationship between the quantity of labor demanded at:
A) different income tax rates. B) different values of average product of labor. C) different wage rates. D) different prices of the good that labor is used to produce.
Answer the following statement true (T) or false (F)
1) Homogeneous oligopolists tend to advertise more than do differentiated oligopolists. 2) Oligopolists use limit pricing to maximize short-run profits. 3) Both collusive and noncollusive oligopoly models suggest that price changes will be relatively infrequent in these types of industries. 4) Collusion among firms always involves formal agreements. 5) Firms are more likely to collude when the economy is in a recession.