文章基本信息

标题：Further Simulation Evidence on the Performance of the Poisson Pseudo-Maximum Likelihood Estimator
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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：may
出版社：Centre for Economic Performance
摘要：We extend the simulation results given in Santos-Silva and Tenreyro (2006, ‘The Log of Gravity’, The Review of Economics and Statistics, 88, pp.641-658) by considering data generated as a finite mixture of gamma variates. Data generated in this way can naturally have a large proportion of zeros and is fully compatible with constant elasticity models such as the gravity equation. Our results confirm that the Poisson pseudo maximum likelihood estimator is generally well behaved.
关键词：Gravity equation, Heteroskedasticity, Jensen's inequality