If a macroeconomist studying the causes of unemployment suspects that changes in technology might play a role, then this macroeconomist is at which step in the process of developing an economic model?
A) Identify the exogenous variables.
B) Identify the endogenous variables.
C) Compare the model with the data.
D) Conduct prediction and policy analysis.
E) Develop a model.
A
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Cartels are inherently self-destructive because each member firm has the incentive to cheat on the cartel agreement
Indicate whether the statement is true or false
If products A and B are complements and the price of B decreases, the:
A. demand for A will decline and the demand for B will increase. B. demand for A will increase and the amount of B demanded will increase. C. demand curves for both A and B will shift to the left. D. amount of B purchased will increase, but the demand curve for A will not shift.
If the government created a surplus of an agricultural product due to price supports, how might they dispose of this surplus?
A. have the farmer destroy the crop B. purchase it and store it away C. give it away to a foreign country D. Any of these answers might be a successful tool in disposing of agricultural surpluses.
Refer to the information provided in Figure 15.5 below to answer the question(s) that follow. 
Figure 15.5 Refer to Figure 15.5. If the Custom Sweater Shop is monopolistically competitive, what is the maximum level of average variable cost that would lead to the firm continuing to operate at the profit-maximizing level in the short run?
A. $50 B. $40 C. $46 D. The firm would continue to operate regardless of the level of variable costs.