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交易合约具有结构性特征,选择最优的合约形式就是根据成本最小化原则科学判定合适的合约结构变量。影响合约结构变量的主要成本因素是总交易费用、购置成本和不确定性风险损失。进一步,重要影响因素包括清晰界定产权和立约权竞争、不确定性和社会容忍度、运输半径和电煤紧张程度等因素。本文借助于杨小凯新型古典微观经济学模型,分析煤电纵向交易合约的结构变量的选择,并提出政策建议。
Transaction contracts have structural features. The most suitable form of contract is to scientifically determine the appropriate contractual structure variables according to the principle of cost minimization. The main cost factors that affect the contractual structure variables are total transaction costs, acquisition costs and loss of risk of uncertainty. Further, important factors include a clear definition of competition in property rights and concessions, uncertainties and social tolerances, transport radius and the degree of thermal coal shortage. Based on Yang Xiaokai’s new classical microeconomic model, this paper analyzes the choice of structural variables of coal power vertical trading contracts and puts forward policy suggestions.