@article{10.1162/qjec.2010.125.2.829, author = {M. Grossman, Gene and Rossi-Hansberg, Esteban}, title = "{External Economies and International Trade Redux*}", journal = {The Quarterly Journal of Economics}, volume = {125}, number = {2}, pages = {829-858}, year = {2010}, month = {05}, abstract = "{We study a world with national external economies of scale at the industry level. In contrast to the standard treatment with perfect competition and two industries, we assume Bertrand competition in a continuum of industries. With Bertrand competition, each firm can internalize the externalities from production by setting a price below those set by others. This out-of-equilibrium threat eliminates many of the “pathologies” of the standard treatment. There typically exists a unique equilibrium with trade guided by “natural” comparative advantage. And, when a country has CES preferences and any finite elasticity of substitution between goods, gains from trade are ensured.}", issn = {0033-5533}, doi = {10.1162/qjec.2010.125.2.829}, url = {https://doi.org/10.1162/qjec.2010.125.2.829}, eprint = {http://oup.prod.sis.lan/qje/article-pdf/125/2/829/5319794/125-2-829.pdf}, }