If variable cost at each output level doubles,
a. ATC doubles
b. AFC doubles
c. MC remains unchanged
d. MC doubles
e. MC less than doubles
D
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Painters who paint water towers earn higher wages relative to painters who paint houses because
A) painting water towers is more risky than painting houses. B) the tower painters' union is probably more powerful than the house painters' union. C) the demand for tower painters is greater than the demand for residential painters. D) the supply of water tower painters exceeds the supply of house painters.
The pig farm industry is perfectly competitive. Which of the following is true?
a. Since the industry is perfectly competitive, price and quantity are at the socially efficient levels. b. The competitive price is higher and quantity lower than the socially efficient point. c. The competitive price is higher and quantity higher than the socially efficient point. d. The competitive price is lower and quantity higher than the socially efficient point.
After 1945, the national debt as a percent of GDP:
a. decreased slightly. b. decreased substantially. c. remained about the same. d. increased slightly. e. increased substantially.
A jeweler cut prices in his store by 20%. As a result: a. Its total revenue would fall by 20% if the elasticity of demand was zero
b. Its total revenue would fall, but by less than 20% if the elasticity of demand is greater than zero but less than one. c. Its total revenue would rise if the elasticity of demand is greater than one. d. All of the above would be true.