THE OPTIMAL LOCATIONS OF MULTIPLE BRIDGES, CONNECTING FACILITIES, OR PRODUCT VARIETIES*
研究了当出行成对发生时，两个及以上设施的最优选址和最优数量，发现完美匹配下结果与标准空间竞争模型一致，但随机匹配下不同。
ABSTRACT This paper considers the optimal locations of two or more facilities, and the optimal number of facilities, when trips are made in pairs. The results are the same as standard models of spatial competition when there is perfect matching , but not when there is random matching . The first interpretation is bridges across a river, with residential locations on one side matched perfectly or randomly to jobs on the other side. The second interpretation is connecting facilities , such as tennis courts or restaurants where pairs of consumers meet. The third interpretation is product differentiation, with husbands and wives jointly choosing from among varieties.