难以确定的是民间投资，而民间投资将是决定经济长期发展最重要的因素之一。国家信息中心副主任刘鹤说：“这取决于鼓励民营经济的政策实施到什么程度，取决于制度变革的进程”。“现在大家都越来越认识到，制约经济增长的因素来自生产关系和上层建筑。中央关于‘十五’计划的 Difficult to determine is private investment, and private investment will be one of the most important determinants of long-term economic development. Liu He, deputy director of the State Information Center, said: “It depends on the extent to which the policy of encouraging the private economy is implemented, depending on the progress of institutional change.” "Now everyone is increasingly aware that the factors that constrain economic growth come from the relations of production and the superstructure. The central government’s plan for the 10th Five-Year Plan