Graduate students' impact on research

One of the long-valued aspects of graduate programs has been their contribution to the research productivity of their advisors. A study reported that the influx of graduate students from China in mathematics programs in the U.S.A. resulted in increased productivity for some professors but not others. The link was intra-cultural academic collaboration. For those professors of Chinese heritage who mentored Chinese graduate students, research productivity increased but the productivity of non-Chinese professors dropped.