A Study on the Mechanism and Pricing of Drainage Rights Trading Based on the Bilateral Call Auction Model and Wealth Utility Function

In the context of high incidence flooding disputes among neighboring subjects in basin, exploring drainage rights trading mechanism and clarifying pricing method are new ideas to manage disasters. this study, is constructed using a bilateral call auction model, which price constraint, control total quantity clearing rule, matching rule explained. addition, we adopt wealth utility concept construct function, apply social welfare function associate functions both sides transaction, draw on environmental Gini coefficient model for transactions based fairness efficiency. Finally, conduct an arithmetic simulation transaction China’s Jiangsu section Huaihe River Basin. The study’s results show that can give optimal scheme when multiple rights. This fills gap existing studies lead efficient At same time, considers efficiency fairness, providing more practical theory trading.