TY  - BOOK
AU  - Evenett,Simon J.
AU  - Keller,Wolfgang
TI  - On theories explaining the success of the gravity equation
AV  - HF1379 E936O
PY  - 1998///
CY  - Cambridge, Mass
PB  - National Bureau of Economic Research
KW  - INTERNATIONAL TRADE
KW  - ECONOMETRIC MODELS
KW  - PRODUCT DIFFERENTIATION
KW  - ECONOMICS
KW  - RESEARCH
ER  -