政治经济学作为研究经济关系及其运行规律的科学,见微知著、知常达变,是观察和分析经济社会的“望远镜”和“显微镜”。今天,中国已经稳居世界第二大经济体,经济保持中高速增长,基本面良好、潜力巨大;同时又呈现“三期叠加”的阶段性特征,面临诸多新的风险挑战和不确定性因素。当一个国家处于这样的关键历史时期,就特别需要立足国情实际和发展实践,揭示新特点新规律,提炼和总结经济发展实践的规律性成果,把实践经验上升为系统化的政治经济学说,为实 As a science that studies the economic relations and its operating rules, political economy can be seen as a little knowledge and continual change. It is a “telescope” and a “microscope” that observe and analyze economic and social issues. Today, China has become the second-largest economy in the world. Its economy has enjoyed rapid growth with good fundamentals and great potential. At the same time, China has also shown its phased characteristics of “three superpositions.” It faces many new risks and uncertainties Sexual factors. When a country is in such a crucial historical period, it is especially necessary to base itself on the actual conditions of the country and its development practice, to reveal new laws and new laws, to refine and summarize the regular results of economic development practices, to elevate practical experience to systematic political economy and to real