文章基本信息

标题：Trading Partners and Trading Volumes: Implementing the Helpman-Melitz-Rubinstein Model Empirically
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作者：J. M. C. Santos Silva ; Silvana Tenreyro
期刊名称：CEP Discussion Paper
出版年度：2009
卷号：2009
期号：JUNE
出版社：Centre for Economic Performance
摘要：Helpman, Melitz, and Rubinstein (2008)–HMR–present a rich theoretical model to study the determinants of bilateral trade flows across countries. The model is then empirically implemented through a two-stage estimation procedure. This note seeks to clarify some econometric aspects of the estimation approach used by HMR and explore the consequences of possible departures from the maintained distributional assumptions
关键词：Gravity equation, Heteroskedasticity, Jensen’s inequality