Refer to the diagram for athletic shoes. The optimal output of shoes is:
A. Q 1 .
B. Q 2 .
C. Q 3 .
D. greater than Q 3
B. Q 2 .
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Which of the following is true of the short-run aggregate supply curve?
a. It shows the relation between the inflation rate and the quantity of aggregate output firms supply, other things constant. b. It shows the relation between the price of labor and the aggregate quantity of labor workers supply, other things constant. c. It shows the relation between the interest rate and the quantity of capital goods firms supply, other things constant. d. It shows the relation between the price level and the quantity of aggregate output firms supply, other things constant. e. It shows an inverse relationship between the price level and real GDP.
Suppose that elasticity has been reliably measured as 1.55 and the unit price decreases from $20 to $17.50 . How much will quantity demanded increase?