TY  - BOOK
AU  - Helpman Elhanan
AU  - Krugman Paul R
TI  - Market structure and foreign trade: increasing returns, imperfect competition, and the international economy
SN  - 0-262-58087-X
U1  - 382 
PY  - 1996///
CY  - Cambridge
PB  - MIT Press
KW  - Economies of scale
KW  - Imperfecr competition
KW  - Industrial organization-economic theory
KW  - International economic relations
ER  -