Study on Tacit Collusion and Low-price Equilibrium in Auctioning Total Permitted Pollution Discharge Capacity

摘要

In this paper, a typical free allocation model of allocating Total Permitted Pollution Discharge Capacity (TPPDC) is analyzed, and a uniform price auction model with fixed supply by using a set of conditions and mechanism assumptions is presented. Through theoretical analysis and example verification, the conclusion can be drawn that the bidders' collusion and low-price equilibrium will easily occur in this uniform price auction mechanism. So we give some improved methods based on the strategies of uncertain supply and optimized supply which can effectively restrain tacit collusion and reduce many low-price equilibriums.