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生產率增長測算的工具變數法

Instrument Variable Method for Productivity Growth Measurement

摘要


工具變數法是生產率增長測算的經濟計量學方法中唯一可以解決解釋變數內生問題的方法。該方法的主要問題在於較難尋找到合適的工具變數。如果工具變數的運用恰當,即使模型中存在內生解釋變數,工具變數法也可以給出模型參數的一致估計。關於工具變數法測算生產率增長的研究開始較晚,相關的理論發展還不太成熟,這在一定程度上影響了方法的推廣與應用。

並列摘要


Among all the econometric methods for productivity growth measurement, instrument variable is the only one that can be used to solve endogenous explanatory variable problems. The main difficult of this method is to search for a suitable instrument. If instrument variables are appropriately chosen, researchers may draw a consistent estimate of purpose model. Because study of instrument variable method for productivity growth measurement began only two decades years ago, and the theory is not so mature, this method has not been applied to spread practice

參考文獻


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王奇生(2002)。最佳工具變數估計量。南華大學學報。12
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Dufour J M,Kiviet, J F(1995).Cahiers de recherche 9548.Universite de Montreal, Departement de sciences economiques.

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