立足现实重大问题，针对已有研究不足，本着宏观与微观、理论与经验相结合的原则，本项目构建跨时优化一般均衡模型(IGEM)、微观模拟模型并使二者相联结。在此基础上，系统地研究了能源价格波动、ICT投资、R&D投资和技术进步对低碳经济增长的影响。主要研究内容包括：第一，从宏观、行业和微观三个层面研究经济增长达到稳态时，能源价格波动、ICT投资、R&D投资和技术进步对宏观经济、产业部门和家户福利的影响；第二，从宏观、行业和微观三个层面研究转移动态增长路径下，能源价格波动、ICT投资、R&D投资和技术进步对宏观经济、产业部门及家户福利的动态影响；第三，从宏观、行业和微观三个层面，研究稳态经济增长和转移动态路径下，不同的政策方案对我国宏观经济、产业部门低碳经济增长和家户福利的影响，评估政策实施的成本大小，选择最优的低碳经济增长路径并提出相关政策建议。本项目成果对研究我国低碳经济增长具有重要的参考价值。

This proposal follows hot debates on the current China’s most focus issues, and endeavors to extend existing models in literature by combining macro with micro discussions together with theoretical and empirical analysis. It constructs an inter-temporal optimization computable general equilibrium model (IGEM) as well as structural micro-simulation models, and combines them to derive an integrated model. Based on this, it then estimates effects of energy price, ICT investment and technological progress on growth of China’s low-carbon economy. This project mainly includes the following three parts. First, it analyzes effects of energy price fluctuations, ICT investment and technological progress on changes of industrial sectors, households’ welfare and the whole economy in China at the steady-state. Second, it dynamically evaluates effects of the aforementioned factors on changes of industrial sectors, households’ welfare and the whole China across various steady-states. Third, it compares effects of such factors on China’s low-carbon economy and the Chinese’ welfare under alternative policy scenarios both at the steady-state and transitional paths across different steady-states. It then suggests the best growth path of China’s low-carbon economy and accordingly provides policy implications. The project expects its results will benefit climate policy implementations in China.