改革开放以来，我国经济发展呈现东、中、西三个梯度，东部地区经济发展势头强劲，而中西部地区相对缓慢，东西差距拉开。近几年，中西部与东部地区的差距越来越大。当然，造成中西部经济相对落后的原因很多，诸如经济发展战略、区域政策、自然环境、资金状况和人力资本状况等 Since the reform and opening up, the economic development of our country has shown three levels of east, middle and west. The economic development in the eastern region has been developing strongly. However, the central and western regions are relatively slow and the gap between the east and the west is widening. In recent years, the gap between the central and western regions and the eastern region has been growing. Of course, there are many reasons for the relative backwardness of the central and western regions, such as economic development strategies, regional policies, the natural environment, financial conditions and human capital conditions