Study On Green Building Incentive Countermeasures Based On Evolutionary Game Theory

China is in the process of rapid urbanization, energy consumption problem is particularly intractable. The implementation of green building can improve living relationship in our country, reduce energy consumption and ease energy problems. At the same time, green building generates incremental cost which brings incremental investment, incremental investment will make driving effect on the economy, so as to increase the industry output, for this reason green building has a certain role in promoting the national economy. In addition, the improvement of material and technology in green building makes it more livable.In terms of promoting green building, the government is supportive, the aspect of top-level designing is preliminary satisfying, some developers especially large listed companies do a lot of positive exploration in the green building practice, and consumers in pursuit of quality life are willing to choose ecological residence. In short, participants involved all want to promote green building, however it hasn’t been implemented effectively in our country. In this paper, we aim to dig up the problems existing in promoting green building, and seek for corresponding solutions.The finding by analysis is that the percentage of green buildings in new constructions is very low, most of green buildings are low star buildings. In the national 31 provinces and cities, only two-thirds have green building assessment committees, half have green building evaluation standards, and one-third have green building subsidies. It can be seen that the incentive policies for green building is not so perfect, consumers are in lack of energy saving awareness, and developers don’t have much motivation to develop green building. Also the construction cost of green building is higher than ordinary building, however its benefits can’t be recognized at once, as a result green building is lack of competitiveness in the market.Domestic researches on green building mainly focus on the macro level, including analyzing its economic benefits based on the whole life cycle theory, discussing its externality on account of market failure theory, describing the participants’ behavior according to traditional game theory, as well as drawing lessons from foreign experience in developing green building and providing some enlightenment. Abroad studies are interested in economic analysis, designing level and incentive policy. Most of the researches adopt qualitative method. Based on traditional game theory under completely rational assumption, game analysis on green building usually sets up between two participants, the study on the behavior of participants is not adequate.The article follows bounded rationality hypothesis of participates, uses evolutionary game theory, describes the game among relevant interest groups, namely participants of green building, including government, developer and consumer. Government supports for promoting green building but wants to reduce investment in order to relieve financial pressure. Developers hope to invest in green building before achieving economies of scale, however they are not willing to increase the cost and take the risk of developing green building alone. Consumers prefer to buy healthier and more comfortable houses, but they don’t want to pay extra. By building a game matrix, establish a replicated dynamic equation, and describe evolutionary process of participants through replicated dynamic diagram. Analyze the behavior mechanism of relevant interest groups, solve pareto equilibrium advantage conditions the system converges to, and reveal the problems existing in the aspect of government incentives, developer practices, consumers purchase intention. Based on the results, we put forward incentive measures about how to develop green building in our country from the viewpoints of the government, developer and consumer separately, it has practical significance for making and improving the green building policy.