The shape of the long-run average cost curve reflects
a. market demand
b. economies and diseconomies of scale
c. increasing and diminishing marginal returns
d. productivity of fixed inputs
e. all of the above
Question 2
Empirical studies of production suggest that the long-run average cost curve
a. is U-shaped
b. has an inverted L shape
c. is L-shaped
d. is horizontal
e. shows diminishing marginal returns