Question 1
Returns to specialization can occur when
◦ increasing the amount of labor allows workers to specialize.
◦ the exponents of the Cobb-Douglas production function are greater than 1.
◦ a firm doubles its inputs.
◦ the average cost curve is above the marginal costs curve.
Question 2
Suppose the production of DVD players can be represented by the following production function:
q = L
0.4K
0.4. Which of the following statements is (are) TRUE?
◦ The production function has decreasing returns to scale.
◦ The marginal productivity of labor falls as labor increases in the short run.
◦ Capital and labor can be substituted for one another.
◦ All of these.