If all firms had to bear all the social costs of their actions, we should observe marginal cost curves
A) of all firms shifting up.
B) of some firms shifting up, of some others shifting down, and of the rest not shifting at all.
C) of all firms that had generated externalities shifting up while there would be no change for the rest of the firms.
D) of some firms shifting up and of the rest shifting down.
B
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If the economy is producing at point a on its production possibility frontier, then
A) all of the country's workers are employed. B) all of the country's workers are specialized in one product. C) all of the country's capital is used for one product. D) all of its capital is used, but not efficiently. E) all of the country's exports are produced in equal amounts.
A change in the expected price level is likely to cause which of the following?
a. a shift in the short-run aggregate supply curve and long-run aggregate supply curve b. a shift in the short run aggregate supply curve c. a shift in the aggregate demand curve d. a shift in the long-run aggregate supply curve