This paper shows that the poisson quasi-maximum likelihood estimator applied to the gravity model produces estimates in which, summing across all partners, actual, and estimated total trade flows are identical. Other methods such as ordinary least squares (OLS) do not have this desirable property. Indeed, poisson is the only quasi-maximum likelihood estimator that preserves total trade flows. This result is an additional reason for preferring poisson...
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ПОДРОБНАЯ ИНФОРМАЦИЯ
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2012/08/28
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Журнальная статья
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79416
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1
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1
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2018/06/07
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Disclosed
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The poisson quasi-maximum likelihood estimator : a solution to the "adding up" problem in gravity models
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maximum likelihood estimator
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