共 12 条
[11]
Gravity Redux : Estimation of gravity-equation coefficients, elasticities of substitution, and general equilibrium comparative statics under asymmetric bilateral trade costs[J] . Jeffrey H. Bergstrand,Peter Egger,Mario Larch.Journal of International Economics . 2013 (1)
[12]
Gravity with Gravitas: A Solution to the Border Puzzle[J] . James E. Anderson,Eric van Wincoop.The American Economic Review . 2003 (1)