533

28. Along the lines of Exercises 19–21, assume that a distribution of shoppers is given by the graph that accompanies Exercise 25. If Store locates at 3 (as in the graph) and Store locates at 1, then no shopper would have to travel more than 1 to go to a store. This notion of a “social optimum” was discussed in Exercise 21. Does the same idea hold for this distribution? Would it be acceptable for shoppers closer to 0 and 4 to travel farther because there are fewer of them?