Graff Zivin, Joshua; Azoulay, Pierre; Wang, Jialan - National Bureau of Economic Research (NBER) - 2008
We estimate the magnitude of spillovers generated by 112 academic "superstars" who died pre- maturely and unexpectedly, thus providing an exogenous source of variation in the structure of their collaborators' coauthorship networks. Following the death of a superstar, we find that collaborators...