基于实物期权契约的应急物资政企联合储备模型

Government-Enterprise Joint Reserve Model of Emergency Materials Based on Real Option Contract

根据我国应急管理实践需求,研究了基于实物期权契约的应急物资政企联合储备模式,并针对适合实物期权契约的应急物资特性,构建政府期望成本函数和企业期望利润函数,提出了政企联合储备模型。分析比较了有无期权合作契约的最优储备问题,揭示不同储备模式下影响政府储备决策的关键因素。讨论了合作可行性的约束条件,通过算例研究期权价格和执行价格的取值范围,分析政企单位库存成本比值和突发事件发生概率对储备决策及合作可行性的影响。研究表明:政企之间的实物期权契约能有效提高应急系统的保障能力,并降低政府的单位应急保障成本,提高企业利润,实现合作双赢。

According to the practical needs of emergency management in China,this paper studies the joint reserve mode between government and enterprises of emergency materials based on the real option contract.Besides,according to the characteristics of emergency materials suitable for the real option contract,it builds the expected cost function of the government and the expected profit function of enterprises,and proposes the governmententerprise joint reserve model of emergency materials.In addition,it analyzes and compares the optimal reserve problem with or without option cooperation contract and reveals the key factors that influence the government reserve decision in different reserve modes.In addition,based on the discussion the constraints of cooperation feasibility,it studies the value range of option price and execution price,analyzes the impact of the unit inventory cost ratio between government and enterprise and the probability of emergencies on the reserve decision and cooperation feasibility,using a numerical example.The research shows that the real option contract between government and enterprises can effectively improve the support ability of the emergency system and reduce the unit emergency support cost of the government,increase the profits of enterprises,and achieve a win-win cooperation.