共 10 条
[5]
Gravity with Gravitas: A Solution to the Border Puzzle[J] . James E. Anderson,Eric van Wincoop.The American Economic Review . 2003 (1)
[6]
Trade Flows and Spatial Effects: The Gravity Model Revisited[J] . A. Porojan.Open Economies Review . 2001 (3)
[7]
Spatial Patterns of Migration under China's Reform Period[J] . Fang Cai.Asian and Pacific Migration Journal . 1999 (3)
[8]
National Borders Matter: Canada-U.S. Regional Trade Patterns[J] . John McCallum.The American Economic Review . 1995 (3)
[10]
An Analysis of the Determinants of Geographic Labor Mobility in the United States[J] . The Review of Economics and Statistics . 1969 (2)