If people who have children also tend to own dogs, we can say there is a positive correlation between having children and dog ownership.
Answer the following statement true (T) or false (F)
True
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Demand deposits are termed so because:
A) depositors can withdraw money from such deposits at any point of time. B) there are no limitations on the amount of money that can be deposited into such accounts. C) depositors can demand any rate of interest on such deposits. D) most consumers want to open such accounts as they are greatly in demand.
The supply of labor curve
A) has a negative slope. B) is independent of the wage rate. C) shows how much labor workers are willing to supply at various real wage rates. D) is usually vertical.
Macroeconomists are concerned with each of the following issues EXCEPT:
A. Why do the prices of computers increase more slowly than the price of gasoline? B. What are the costs of inflation? C. Why does inflation vary over time? D. Why does inflation vary across countries?
Refer to the information provided in Figure 12.3 below to answer the question(s) that follow. 
Figure 12.3
Refer to Figure 12.3. The DVD industry is a constant-cost industry. As the demand for DVD players shifts from D to D', which of the following is least likely to result?
A. If the market for DVD players is competitive, the price will increase to $5.00 in the short and long run. B. More resources will be allocated to produce DVD players. C. The demand for DVDs will increase. D. If the market for DVD players is perfectly competitive, economic profits in this industry will increase in the short run, but will fall back to zero in the long run.