This paper explains external demonstration effect of implementing logistic support by utilizing contractor in american military ; analyzing spillover - effect of return and reducing effect of transaction cost of contractor trade during the socialization of logistic support ; and making the model analysis of the strategy choice of direct transactions and broker transactions of the socialized military logistic support so as to provide theory support for the further reform of the socialization of logistic support 摘要阐述了美军利用承包商实施后勤补给的外部示范效应；对军队后勤社会化保障中间承包商交易收益溢出效应模型及交易成本节约效应进行了分析；对军队后勤社会化保障中直接交易与利用中间承包商交易策略优化选择进行了模型分析。
