本文研究了京津冀、长三角地区的经济收敛性，京津冀地区包括北京以及周边51个地区，长三角地区包括上海及其周边83个地区，利用市县级财政数据，对1997—2005年以及分阶段（1997—2001年、2001—2005年）进行了 收敛和 绝对收敛的计量回归，进一步考虑区域相关性，对地区经济增长进行了Moran’s I检验，并利用同时包含空间滞后和空间误差的空间计量模型重新对 绝对收敛进行了检验。普通OLS回归结果表明，在1997—2005年（包括分阶段）京津冀地区和长三角地区经济增长的 收敛和 绝对收敛均不存在，且两地区的发散程度逐渐增大，京津冀地区的经济增长发散程度大于长三角地区。采用空间计量方法对 绝对收敛进行检验后发现，1997—2005年长三角地区的 绝对收敛存在且在10%的显著水平上显著，但京津冀地区在这一时间段内并没有呈现收敛的趋势。此外，京津冀与长三角内部地区间经济相关性呈现差异，空间滞后项显示，京津冀地区内邻近地区间经济呈现相互抑制的作用，而长三角地区则呈现相互带动的作用。

This paper discusses the convergence of Beijing, Tianjin, Hebei region and the Yangtze River Delta region in 1997 - 2001, 2001 - 2005 and 1997 - 2005 using city and county financial data. Beijing, Tianjin, Hebei region includes 51 areas and the Yangtze River Delta region includes 83 areas. First, convergence is considered and then the convergence is analyzed under Barro and X-sala-Martin’s model ( absolute convergence). After taking into account regional relevance, Moran’s I test is made and then analyze absolute convergence under spatial econometric model. The results show that in Beijing, Tianjin, Hebei region and the Yangtze River Delta region convergence doesn’t exist and the degree of divergence increases in 1997 - 2005. The absolute convergence in Beijing, Tianjin, Hebei region and the Yangtze River Delta region also doesn’t exit in 1997 - 2005. Taking absolute convergence under spatial econometric model this paper finds that there is absolute convergence of the Yangtze River Delta region and 10% significance level was significant, but in any other periods absolute convergence doesn’t exit in Beijing, Tianjin, Hebei region and the Yangtze River Delta region. In addition, this paper also finds some other interesting results from spatial econometric model. On one hand, in Beijing, Tianjin, Hebei region the economic growth of surrounding areas will restrain the surrounded region’s economic growth. However, the economic growth of an area in the Yangtze River Delta region will drive the region’s economic growth. On the other hand, the same regional relevance factors conducive to absolute convergence in Beijing, Tianjin, Hebei region but don’t conducive to absolute convergence in the Yangtze River Delta region.