中文摘要：

当前中国经济正面临重要的转折点，过去30多年赖以维系的高速增长发展模式走到了需要转折的关键时期。文章以扩展的经济增长理论模型作为框架，从对外开放和内部改革两大视角，剖析了开放对于技术进步、资本供给与市场扩大的贡献，以及改革对劳动力解放和劳动力供给、资本积累和经济货币化、技术进步、商品市场建设、资源利用和环境消耗等方面的作用，并论述这些因素随时间推演的变迁。由于制度改革的相对滞后，中国在高速经济增长的同时积累了大量的社会矛盾和问题，而次贷危机、欧债危机改变了中国经济发展的外部环境，“内忧外患”之下，由改革开放带来的红利不断缩小，现行体制的诸多弊端逐步显现。然而，作为一个有着十几亿人口的大国，中国仍然有着广阔的增长空间和增长动力，当下国内国际的社会经济形势，恰为中国经济转型提供了“天时地利人和”。审时度势，适时对现行经济发展模式进行调整：通过主动转型释放增长空间，在提高资源禀赋利用的同时加大促进科技创新；进一步深化改革开放，从制度上奠定我国经济长期健康发展的基础；从全球经济再平衡的高度布局国内经济转型战略；协调货币政策与财政政策为经济转型保驾护航，则中国有望在新的起点上实现经济长期平稳健康发展。

英文摘要：

The growth pattern of China＇ s economy has entered a changing period under the pressure that it can- not keep on the high growth as the past thirty years. Using an extended model of Douglas-Cobb＇ s economic growth function, the paper presents a systematic view about the contributions and fading out of the economic growth factors including technology, capital, labor, market, resource, and environment from the two perspec- tives of opening and reform. Moreover, due to the slow pace of institutional reform, a mass of social problems has been accumulated. And the Sub-prime Debt Crisis and the European Debt Crisis have been changing the in- temational economic ecosystem. Therefore, the current economic growth pattern is now sustainable. However, with a huge population, China still has vast development potential, and its hidden growth power is very large. A perfect condition for transforming the current economic growth pattern to a sustainable one is mature. To en- sure the smooth transformation, we suggest that the government should take an active transformation to release economic potential, coordinate the balanced development of economy and science, deepen institutional reforms to address China＇ s economic and social problems, build an institutional base for long term economic growth, layout inner transformation based on global economic re-balancing, and improve both monetary policy and pub- lic financial policy to better serve the economic transformation