经济发展是指一个国家经济、政治、社会文化、自然环境、结构变化等方面的均衡、持续和协调的发展。它不仅是一个量的概念,更是一个质的概念。国内生产总值作为衡量经济发展的一个重要指标,在一定程度上反映出经济发展的进度,但不能说明所生产的产品 Economic development refers to the balanced, sustained and coordinated development of a country’s economy, politics, social culture, natural environment and structural changes. It is not only a quantitative concept, but also a qualitative concept. As an important measure of economic development, gross domestic product reflects to some extent the progress of economic development, but can not explain the products produced