| 摘 要： | This paper introduces a new economy geography index,market access, to analyze the dynamic mechanism of labor migration in China based on the sample data from China’s labor cross-region flow 1998 ～ 2008.The empirical test prove the reversed U-shape of Market access -Wage - Migration and finds that market access in early period of China’s reform increased labor migration significantly from peripheral zone to the central area which caused China’s core-peripheral competition landscape.However with the appearance ofLewis turning pointand disappearance of demographic dividend,the M-W-M mechanism tends to weaken.The calculation shows that the estimated value of hidden barriers against labor migration, i.e.border effect, is 3.94,and the values of border effects boast of a ladder-type rising trend from the east to the west in China.The labor market in the central area is relatively open while more isolated in peripheral zone.To change China’s center-periphery pattern into more balanced development among regions and to maintain the competitiveness of China’s industrial production,it is important for government to have proper policies to maintain free market and ensure efficient allocation of production factors.
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