本项目基于我国节能减排的社会经济外生因素和各类决策主体间的经济关系，对影响节能减排的作用机理进行理论和实证研究，并以此为基础提出对策建议。研究分为三个部分：一是以产业组织理论为基本分析框架，对节能减排的决策进行理论分析。其中，基准理论模型是将节能减排纳入企业在一定市场结构、经济环境和政策背景下的最优决策，建立由企业节能减排决策、企业所在地方政府政策干预、中央政府的最优决策的三阶段互动博弈，以此进行比较静态研究。社会经济外生条件、区域产业特性和企业竞争类型的影响均在这一框架下展开。进一步，深化和拓展理论假设，分别将"节能"对"减排"的影响、地方政府间的策略性互动、国际合作、消费者或公共品提供者的决策等因素引入基准模型。二是基于理论分析，应用多选项离散选择模型和空间计量方法,实证分析影响我国节能减排的因素。三是基于理论和实证研究的推论，提出优化节能减排的规制政策建议。

Basing on the actual background of China's energy-saving, this project theoretically and empirically studies the mechanism of the influence that each main decision-making side and exogenous factor of social economy has on energy-saving, and puts forward some advice on this basis. There are three sections in the research. The first is the theoretical analysis of each side's energy-saving decisions in the basic analytical framework of industrial organization theory. In this section, the baseline theory model brings the energy-saving into the optimal decision of the corporate in a certain market structure, economic environment and policy context, and sets up the three-stage interactive game, where the corporate makes the energy-saving decision, the local government policy interventions and the Central Government optimizes the decision-making, to make the comparative static research. The exogenous factors of social economy, regional industrial characteristics and enterprise competitive types are all expanded in this framework. Furthermore, the impact of "energy-saving" on "emission-reduction", the strategic interaction between local governments, the international cooperation, and the decision-making of customers or common goods suppliers are separately introduced into the baseline model to deepen and expand the theoretical hypotheses. The second is the empirical analysis of the influencing factors of China's energy-saving, with the application of multiple-discrete choice model and spatial econometric methods, based on theoretical analyses. The third is the regulatory policy recommendations to optimize energy-saving based on the consequence of theoretical and empirical research.