ON THE OPTIMUM LOCATION OF VERTICALLY RELATED FIRMS WITH SIMULTANEOUS ENTRY*
研究双边垄断下两家垂直关联企业同时进入市场时的区位选择，发现中间区位难以出现，且福利最大化下的区位模式与完全竞争下相同，但与双边垄断不同。
ABSTRACT This paper considers a case of bilateral monopoly and examines the possibility of an intermediate location for two vertically related firms under simultaneous entry, and then analyzes the welfare‐maximizing location for both firms. It shows that whatever the case, an intermediate location for both firms is unlikely to occur and that the pattern of industrial location under welfare maximization is equivalent to the one under perfect competition, but is different from the one under bilateral monopoly under certain circumstances.