威廉姆森(Williamson)提出了一个著名的有关一国生产空间分布演变的倒U型假说,即一国或地区的生产集中度会随着经济发展水平的提高而呈现先增大后减小的变化趋势。本文运用我国1996-2009年省际面板数据对该假说进行了实证检验。实证研究的结果支持了这一假说:随着经济发展水平的提高,我国生产集中度呈现出先上升后下降的倒U型演变过程。 Williamson proposed a famous inverted U-shaped hypothesis about the evolution of the spatial distribution of a country’s production, that is, the concentration of production in one country or region will first increase and then decrease as the economic development level increases Trend. This paper tests the hypothesis by using the provincial panel data from 1996 to 2009 in our country. The result of empirical research supports this hypothesis: With the improvement of economic development level, the concentration of production in our country shows an inverted U-shaped evolution that firstly increases and then decreases.