Environmental issues and cleaner production are getting increasing attentions currently, making the clean production and sustainable consumption with low emissions significant. Traditional energy vehicles are increasingly unsuitable for the development of current society. It’s a trend in the current vehicle market to accelerate the substitution of new energy vehicles for traditional energy vehicles. This paper makes a theoretical study on the development of new energy vehicle market supported by the government. First, this paper establishes a Cournot duopoly model which includes domestic and imported new energy vehicle manufacturers. Through the analysis of this model, this paper argues that government support policies such as subsidies and tariffs can effectively expand the market share of domestic new energy vehicles with less technology. Yet this approach is unsustainable, because domestic new energy vehicles with less technology can only survive in the market by shortening the gap with imported brands. Secondly, this paper establishes a Stackelberg model with product price as the decision variable and find that when there is a technical gap, the first mover advantage in the market will no longer exist. Finally, this paper compares two kinds of subsidies for domestic new energy vehicles and shows that the two subsidies are not different from subsidizing consumers or enterprises in expanding market share, and the consumer can obtain higher social welfare level as the subsidy object.

当前，环境问题和清洁生产日益受到关注，这使得清洁生产和低排放量的可持续消费成为重要问题。传统的能源汽车越来越不适合当今社会的发展。当前汽车市场中的趋势是加速用新能源汽车替代传统能源汽车。本文对政府支持的新能源汽车市场的发展进行了理论研究。首先，本文建立了包括国内和进口新能源汽车制造商在内的古诺双头垄断模型。通过对该模型的分析，本文认为补贴，关税等政府扶持政策可以有效地扩大技术含量较低的国产新能源汽车的市场份额。然而，这种方法是不可持续的，因为技术含量较低的国产新能源汽车只能通过缩短与进口品牌的差距来在市场上生存。其次，本文建立了以产品价格为决策变量的Stackelberg模型，发现当存在技术差距时，市场上的先发优势将不复存在。最后，本文对国产新能源汽车的两种补贴进行了比较，发现这两种补贴与扩大市场份额的对消费者或企业的补贴没有什么不同，消费者可以获得较高的社会福利水平作为补贴对象。本文建立了一个以产品价格为决策变量的Stackelberg模型，发现当存在技术差距时，市场上的先发优势将不复存在。最后，本文对国产新能源汽车的两种补贴进行了比较，发现这两种补贴与扩大市场份额的对消费者或企业的补贴没有什么不同，消费者可以获得较高的社会福利水平作为补贴对象。本文建立了一个以产品价格为决策变量的Stackelberg模型，发现当存在技术差距时，市场上的先发优势将不复存在。最后，本文对国产新能源汽车的两种补贴进行了比较，发现这两种补贴与扩大市场份额的对消费者或企业的补贴没有什么不同，消费者可以获得较高的社会福利水平作为补贴对象。