1 论文标题The Collapse of the Soviet Union and the Productivity of American Mathematicians
2 作者信息
George J. Borjas, Kirk B. Doran
3 出处和链接（比如，NBER working paper No.11000）
NBER Working Paper No. 17800，Issued in February 2012
4 摘要

It has been difficult to open up the black box of knowledge production. We use unique international data on the publications, citations, and affiliations of mathematicians to examine the impact of a large post-1992 influx of Soviet mathematicians on the productivity of their American counterparts. We find a negative productivity effect on those mathematicians whose research overlapped with that of the Soviets. We also document an increased mobility rate (to lower-quality institutions and out of active publishing) and a reduced likelihood of producing “home run” papers. Although the total product of the pre-existing American mathematicians shrank, the Soviet contribution to American mathematics filled in the gap. However, there is no evidence that the Soviets greatly increased the size of the “mathematics pie.” Finally, we find that there are significant international differences in the productivity effects of the collapse of the Soviet Union, and that these international differences can be explained by both differences in the size of the émigré flow into the various countries and in how connected each country is to the global market for mathematical publications.




Prof. George Borjas将于2月28日也就是明天于厦门大学王亚南学院做本文学术报告。

主题：苏联的解体与美国数学家的生产率

主讲人：主题：苏联的解体与美国数学家的生产率主讲人：Prof. George Borjas (Harvard University） 简介：很多经济学家相信知识的生产对长期经济增长的重要意义。使用有关数学家的论文发表、引用以及所属研究机构的一个独特的国际数据，我们研究1992年后大批苏联数学家流入对于他们美国同行生产率的影响。我们的结果发现这一流入对那些研究方向与苏联同行重叠的美国数学家的生产率产生了负面的效果。我们还发现这一流入带来流动性（这里的流动指的是向流转到较低质量的研究机构以及退出论文发表）增加以及更少可能生产所谓“home run”文章。我们还发现苏联解体对生产率的影响在不同国家间的影响有显著不同，而这种不同可以用苏联数学家流入各国的规模以及各国在数学论文发表上与国际市场的密切程度相关。时间：2012年2月28日，19：15-20：30 地点：厦门大学经济楼D110 举办单位： 厦门大学王亚南经济研究院、经济学院