基于旅行社的两阶段报价和卖方垄断等事实,建立一个利润最大化模型,解释这三种现象同时存在的原因。得出结论,随着旅行社对游客在安全保护和购物向导方面的价值的降低和旅行社之间竞争的加剧,参加组团购物游的人数还会减少,组团购物旅游的发展需要新的价值点和盈利模式。 Based on the facts such as the two-phase quotation of travel agencies and monopoly of seller, a profit maximization model is established to explain the coexistence of these three phenomena. Concluded that with the travel agencies for tourists in the safety protection and shopping guide to reduce the value and competition between travel agencies intensified to participate in group shopping trips will also reduce the number of groups shopping tourism development needs new value points and profits mode.