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英文文献：The Effect of Climate Change over Agricultural Factor Productivity: Some Econometric Considerations-气候变化对农业要素生产率的影响:一些计量经济学的考虑
英文文献作者：McCarl, Bruce A.,Villavicencio, Xavier,Wu, Ximing
英文文献摘要：
This paper examines the role that climate change might be playing in the declining returns to agricultural research. For this purpose, we estimate a cross-section time-series model of agricultural total factor productivity for the U.S. states over the period 1970–1999, with the inclusion of climatic variables, and controlling for non stationarity of the data. Our findings suggest that after controlling for climatic variables and non stationarity, the effect of Public Agricultural Research Capital over Total Factor Productivity is reduced.
这篇论文探讨了气候变化可能在农业研究回报下降中扮演的角色。为此，我们估计了1970-1999年期间美国各州农业全要素生产率的横断面时间序列模型，其中包括气候变量，并控制了数据的非平稳性。我们的研究结果表明，在控制了气候变量和非平稳性之后，公共农业研究资本对全要素生产率的影响降低了。
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