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在需求不确定的情况下,构建了3个阶段中两零售商利用契约机制进行竞争的模型.通过模型求解,得出各阶段中两零售商各自的最优订货量及契约参数.最后,通过数值例子分析了模型的可行性及解的有效性,并得出当单一零售商采用一种契约机制时,两零售商的整体利润达到最大,实现了优化协调;当两零售商均采用契约机制时,整体利润受损,利润总和达到最小,整体利润的优化协调作用失效.
In the case of uncertain demand, a model of two retailers using the contract mechanism to compete is constructed.Under the model solution, the optimal order quantity and contractual parameters of two retailers in each stage are obtained.Finally, Numerical examples analyze the feasibility of the model and the effectiveness of the solution. It is concluded that when a single retailer adopts a contractual mechanism, the overall profits of the two retailers reach the maximum, achieving optimal coordination. When both retailers adopt the contractual mechanism , The overall profit will be impaired, the sum of profits will be minimized, and the overall coordination and coordination of profits will lapse.