Triguero, Ángela; Córcoles, David - In: Research Policy 42 (2013) 2, pp. 340-352
This study focuses on the persistence of innovation in a panel of Spanish manufacturing firms for the period 1990 …–2008. In particular, we analyse whether persistence in firms’ innovation activities over time is the result of previous … innovation (output) are highly persistent at the firm level. After controlling for unobserved heterogeneity and initial …