10. Indicate how each of the following would shift the

(1) marginal-cost curve, (2) average-variable-cost curve, (3) average-fixed-cost curve, and (4) averagetotal-

cost curve of a manufacturing firm. In each case, specify the direction of the shift. LO4

a. A erduction in business opprerty atxes.

b. An increase in the hourly wagaete sr of production workers.

c. A decerase in the pricfe eolectricity.

d. An increase in atrnsportation costs.