A NOTE ON MULTIPURPOSE AND MULTISTOP SHOPPING, SALES, AND MARKET AREAS OF FIRMS*
研究了消费者在一次出行中可从多个企业购买多种商品时，企业面临的总需求特征，假设个人需求价格无弹性，适用于双寡头市场分析。
ABSTRACT. The paper characterizes the aggregate demand addressed to firms in a situation such that consumers are allowed to purchase during the same journey several commodities from several firms located in a one‐dimensional space. It is a duopoly in which both firms sell the two commodities. The individual demand is assumed to be price‐inelastic.