Regional cohesion: evidence and theories of regional growth and convergence
扩展了美国、日本和五个欧洲国家的区域增长与收敛实证证据，发现区域收敛速度约为每年2%，且收入分布随时间缩小。在多种解释中，单部门新古典增长模型和技术扩散假说经得起检验。
After arguing that the concepts of β-convergence and σ-convergence are independently interesting, this paper extends the empirical evidence on regional growth and convergence across the United States, Japan, and five European nations. We confirm that the estimated speeds of convergence are surprisingly similar across data sets: regions tend to converge at a speed of approximately two percent per year. We also show that the interregional distribution of income in all countries has shrunk over time. We then argue that, among the proposed potential explanations of this phenomenon, the one-sector neoclassical growth model (with no capital mobility or with partial capital mobility) and the hypothesis of technological diffusion seem to be the ones which survive scrutiny.