Abstract: Under the assumption of the retailer’s promotional may affect the market demand, in bank credit and trade credit financing mode, to divide the promotion decision is embedded into the classical newsboy model, and focused on the profit of suppliers and supply chain for numerical analysis. The study found that: when the retailer’s actions have an impact on the market demand, commercial credit to a certain extent, reduce the financing costs of the supply chain, increase the profit of the supply chain; Core enterprise financing strategy related to its own cost and promotion strategy; Commercial credit to capital supply chain configuration and the retailer’s incentive, under the influence of the production cost of supplier and incentive strategy; Finally, the commercial credit to a certain extent, reduce the double marginalized effect.

Key words: supply chain, promotion cost sharing, trade credit, coordination mechanism

摘要： 当零售商的促销策略影响商品市场需求时,本文将促销分摊决策嵌入到经典报童模型,在银行信用与商业信用两种不同的融资模式下,对供应商及供应链整体的利润进行分析。研究发现:当零售商的行为对市场需求有影响时,商业信用在一定程度上减少了供应链的融资成本,增加了供应链的利润;核心企业的融资策略与自身成本及促销分摊策略有关;商业信用对供应链资本配置及零售商的激励,受供应商生产成本及激励策略的影响;商业信用在一定程度上减少了双重边际化效应。

关键词: 资金约束, 促销成本分摊, 商业信用, 协调机制