Since 1950, the balance of trade for United States has
A. gone from a small deficit to a larger deficit.
B. remained constant.
C. gone from a deficit to a surplus.
D. gone from a surplus to a deficit.
Answer: D
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Suppose an increase in supply lowers the price from $10 to $8 and increases the quantity demanded from 100 units to 130 units. Using the midpoint method, the elasticity of demand equals
A) 1.17. B) 0.85. C) 0.26. D) 1.56. E) None of the above answers is correct.
If the firm hires 5 workers, the total amount of fixed costs equals
a. $250 b. $50 c. $200 d. $1200
Milton Friedman argued that there
A) are two Phillips curves, a short-run one and a long-run one. B) are three Phillips curves, a short-run one, a long-run one, and one in stagflation. C) is one Phillips curve, and it is vertical. D) is one Phillips curve, and it is nearly flat or horizontal.
The short-run aggregate supply curve is horizontal when
A) prices are inflexible and the economy is at full employment.
B) there are unemployed resources and prices do not increase when aggregate demand increases.
C) there are unemployed resources and prices do not decrease when aggregate supply increases.
D) there are no unemployed resources and prices do not increase when aggregate demand or supply increases.