Audretsch, David B. (contributor); Lehmann, Erik (contributor) - 2004
Research and Development (R&D), the number of
articles published in academic and scientific journals, the number of employees … or
patents (see Varga, 2000; Henderson et al. 1998; Hall et al. 2003; McWilliams and
Siegel 2000). The overwhelming part … created by universities or if they are only able to commercialize
product innovations (as shown by Mowery and Ziedonis 2001 …