Because firms can free ride on the research and development of other firms
A) firms choose a level of research and development where the marginal cost of research is above the economy's marginal return of research.
B) firms choose a level of research and development where the marginal cost of research is equal to the economy's marginal return of research.
C) firms choose a level of research and development where the marginal cost of research is below the economy's marginal return of research.
D) firms choose a level of research and development where the marginal cost of research is below the individual firm's marginal return of research.
Question 2
The absolute value of the slope of an isocost line equals the ratio of
A) the marginal productivities of the two inputs. B) the prices of the two inputs.
C) the quantities of the two inputs. D) the marginal utilities of the two inputs.
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You ride a motor scooter 8 km in 10 minutes. Your speed is