In economics, the short run is the time frame in which the quantities of ________ and the long run is the period of time in which ________.
A) some factors of production are variable; the quantities of all factors of production are fixed
B) all factors of production are variable but technology is fixed; technology is variable
C) all factors of production are fixed; the quantities of all factors of production can be varied
D) some factors of production are fixed; the quantities of all factors of production can be varied
Question 2
At the current quantity of pizza, the marginal social benefit is greater than the marginal social cost. Then
A) the number of pizzas produced is efficient.
B) more pizzas must be produced to reach the efficient level.
C) fewer pizzas must be produced to reach the efficient level.
D) revenue for pizza producers is maximized.
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