基于Cobb-Douglas函数的交通碳交易机制研究

Transport Carbon Trading Mechanism Based on Cobb-Douglas Function

交通运输部门被视为二氧化碳的主要排放源之一,在此背景下,碳交易机制有望促进交通运输业的低碳发展。本文以Cobb-Douglas效用函数为理论基础,构建了交通碳交易机制的框架。该框架考虑私家车和公共交通两类出行方式,在交通预算和分配碳积分约束下,构造Cobb-Douglas函数来计算两种出行方式的行驶里程。案例研究是一个简单的3区域网络,结果表明交通碳交易机制能够有效地管理交通需求并实现减排的目标,其中碳排放的减少主要是由于私家车平均行驶距离的减少。同时,积分分配方案将影响碳积分的价格。

Transportation sector is seen as one of the main emitters of carbon dioxide. In this context, carbon trading scheme is expected to promote the low-carbon development of transportation sector. Based on the theory of Cobb-Douglas function, this paper constructs the framework of transport carbon trading mechanism by considering both private car and mass transit. Under the constraints of transportation budget and allocated carbon credits, the Cobb-Douglas function is constructed to calculate the kilometers traveled for private car and mass transit. The case study is a simple 3-zones network. The results show that the transport carbon trading mechanism will effectively manage the mobility of the transportation network and achieve the goal of emission reduction. The reduction in carbon emissions is mainly due to the reduction of average distance traveled by private car. At the same time, the allocation of carbon credits will govern the credits price.