Mapping innovative activity using microdata
I discuss the determinants of three alternative measures of innovative output among firms of different size. Moreover, I provide an econometric procedure for testing a Tobit model (Tobin, 1958) against a two-part model. This procedure is alternative to Cragg's (1971) test and feasible for weighted survey data.
Volume (Year): 16 (2009)
Issue (Month): 18 ()
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