References
- Anderson , J. E. and Van Wincoop , E. 2003 . Gravity with gravitas: a solution to the border puzzle . American Economic Review , 93 : 170 – 92 .
- Linnemann , H. 1966 . An Econometric Study of International Trade Flows , Amsterdam : North Holland .
- Roy , J. R. 2004 . Spatial Interaction Modeling: A Regional Science Context , Berlin : Springer .
- Santos Silva , J. M. C. and Tenreyro , S. 2006 . The log of gravity . Review of Economics and Statistics , 88 : 641 – 58 .
- Santos Silva , J. M. C. and Tenreyro , S. 2011 . Further simulation evidence on the performance of the Poisson pseudo-maximum likelihood estimator . Economics Letters , 112 : 220 – 2 .
- Tinbergen , J. 1962 . Shaping the World Economy: Suggestions for an International Economic Policy , New York : Twentieth Century Fund .