全球智库信息集成服务系统(G2TT): Endogenous Variety and the Gains from Trade

G2TT

来源类型	Working Paper
规范类型	报告
DOI	10.3386/w13933
来源ID	Working Paper 13933
	Endogenous Variety and the Gains from Trade
	Costas Arkolakis; Svetlana Demidova; Peter J. Klenow; Andrés Rodríguez-Clare
发表日期	2008-04-25
出版年	2008
语种	英语
摘要	We explore the implications of models with increasing returns, endogenous variety and firm-level heterogeneity for the quantification of the gains from trade. We first focus on the impact of trade liberalization on imported variety by analyzing the experience of Costa Rica from 1986 to 1992. We find that although liberalization triggered a sizable increase in variety, the resulting welfare gains were small because of strong heterogeneity across imported goods. Upon trade liberalization, the new varieties are imported in small quantities, and hence contribute little to welfare. We then present a model with firm-level increasing returns, differentiated goods, monopolistic competition, endogenous variety and free entry to show that total variety (domestic plus imported) can either increase, decrease or remain constant with trade liberalization. More importantly, the gains from trade do not depend on what happens to total variety. In fact, we find that, conditional on the estimated elasticities of trade with respect to trade costs, models with increasing returns, endogenous variety, free or restricted entry, and firm-level heterogeneity have exactly the same implications for welfare gains from trade liberalization as traditional models.
主题	International Economics ; Trade
URL	https://www.nber.org/papers/w13933
来源智库	National Bureau of Economic Research (United States)
引用统计
资源类型	智库出版物
条目标识符	http://119.78.100.153/handle/2XGU8XDN/571643
推荐引用方式 GB/T 7714	Costas Arkolakis,Svetlana Demidova,Peter J. Klenow,et al. Endogenous Variety and the Gains from Trade. 2008.

条目包含的文件
文件名称/大小	资源类型	版本类型	开放类型	使用许可
w13933.pdf（146KB）	智库出版物		限制开放	CC BY-NC-SA	浏览