王维国、杜修立指出,近些年来,经济增长的实证研究已经成为经济增长领域中的一个发展最快、成果最多的一部分。可以把经济增长的实证研究分成两个方面:一是经济增长的收敛性分析;二是经济增长因素分析。前者是一种长期分析,而后者是短期分析。收敛是经济增长理论关注的一个关键概念。在国际上,对经济增长收敛性的分析集中了整个 Wang Weiguo and Du Xiuli pointed out: In recent years, the empirical study on economic growth has become one of the fastest growing and most successful results in the field of economic growth. The empirical research on economic growth can be divided into two aspects: one is the convergence analysis of economic growth; the other is the analysis of economic growth factors. The former is a long-term analysis, while the latter is a short-term analysis. Convergence is a key concept of economic growth theory. Internationally, the analysis of the convergence of economic growth has focused on the whole