Consider the fictional city of S land, where a local resident, Mr. X, invented the printer. There are economies of scale for printing due to the parts, paper, and servicing involved, so the central city developed around a printing center, Winkos. There are no personal printers, and everyone travels to the city center for their printing needs. Suppose that one day the personal printer is introduced into S land from another city and made readily available for purchase by households. Explain the effects of the personal printer on (a) the market area of Winkos and (b) the population of the city surrounding Winkos