For each situation below, identify an appropriate pricing strategy the firm could use to increase profits, if any:
a. All Krispy Kreme customers have identical demands.
b. Some movie buffs like action movies and love spy thrillers; others love action movies and like spy thrillers. Unfortunately, DVD movie seller Best Buy cannot tell who is who.
c. AMC Theatres knows that working professionals have a less elastic demand for movie tickets than students and senior citizens.
d. Some buyers of toner cartridges don't print very often, only printing documents that are very important. Other buyers print often and purchase many toner cartridges; those buyers are quite price-sensitive.
e. McGraw-Hill, publisher of college textbooks, knows there is a very active secondary market in used textbooks.