Scale, scope and spillovers : the determinants of research productivity in ethical drug discovery
Author(s)Henderson, Rebecca.; Cockburn, Iain
"September 1994.""This paper is a revised version of working paper number 3629-93, originally circulated in Auguest [sic] 1993."
Cambridge, Mass. : Alfred P. Sloan School of Management, Massachusetts Institute of Technology
Working paper (Sloan School of Management) ; 3738.