title : Market Structure and Foreign Trade : Increasing Returns, Imperfect Competition, and the International Economy
author : Helpman, Elhanan.; Krugman, Paul R.
publisher : MIT Press
isbn10 | asin : 026258087X
print isbn13 : 9780262580878
ebook isbn13 : 9780585113005
language : English
subject   International economic relations, Industrial organization (Economic theory) , Economies of scale, Competition, Imperfect.
publication date : 1987
lcc : HF1412.H45 1987eb
ddc : 382
subject : International economic relations, Industrial organization (Economic theory) , Economies of scale, Competition, Imperfect.

很好！

tanx dear friend

好书 谢谢了