Suppose that one can read a graph that shows information about price and quantity of some product. Relying solely on the graph, is it possible to explain the relationship between the two variables?
No. The graph does not, by itself, provide an explanation of the cause-effect relationship. For this, one needs economic theory.
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If the demand curve is the same as the marginal benefit curve and the supply curve is the same as the marginal cost curve, then the quantity at which they cross is
i. the equilibrium quantity. ii. the allocatively efficient quantity. iii. the quantity with no deadweight loss. A) i, ii, and iii. B) only i. C) only ii. D) only i and ii. E) only i and iii.
Within the Keynesian model, the multiplier effect tends to
a. smooth out the up- and down- swings of the business cycle. b. promote price stability. c. magnify small changes in spending into much larger changes in output and employment. d. reduce the impact of an increase in investment on output and employment.