Indicate the effect that each of the following conditions will have on a firm's average variable cost curve and its average cost curve.
a. The movement of a brokerage firms administrative offices from New York ( Sty to New Jersey, where the average rental cost is lower
b. The use of two shifts instead of three shifts in a manufacturing facility
c. An agreement reached with the labor union in which wage increases arc- tied to productivity increases
d. The elimination of sugar quotas (as it pertains to those firms that use a lot of sugar, such as bakeries and soft drink bottlers)
e. Imposition of stricter environmental protection laws