Toivanen, Otto (contributor); Väänänen, Lotta (contributor) - 2008
learn the value of the patent (see Pakes 1986 and Lanjouw 1998 for German, UK
and French patents and Grönqvist 2007 for … and Innovation in a Panel of U.K.
Companies, The Quarterly Journal of Economics, Vol. 111, No. 1., pp. 195-226.
Wooldridge …