When economists speak of "marginal", they mean
a. Opportunity
b. Scarcity
c. Incremental
d. Unimportant
c
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Refer to the figure below. In response to gradually falling inflation, this economy will eventually move from its short-run equilibrium to its long-run equilibrium. Graphically, this would be seen as 
A. long-run aggregate supply shifting leftward B. Short-run aggregate supply shifting upward C. Short-run aggregate supply shifting downward D. Aggregate demand shifting leftward
The more time gasoline consumers have to adjust to a price change,
A) the lower their price elasticity of demand. B) the greater their price elasticity of demand. C) the less sensitive they will be to the price change. D) the less time they will have to seek out substitutes for gasoline.
Which is not one of the criteria necessary for a commodity to make a suitable medium of exchange?
A) It should be of standardized quality. B) It should be valuable relative to its weight. C) It should be durable. D) It should have intrinsic value.
Between 1620 and 1710, the price of tobacco in the colonies:
a. rose rapidly. b. remained fairly stable due to monopolistic competition. c. fell from over 20 pence sterling to roughly one pence per pound. d. fell from over 20 pence sterling to roughly 10 pence per pound.