Dynamische Interaktionen zwischen Innovationsplanung und -realisation / Dynamic Interactions between Planning and Realization of Innovations

Gebhard Flaig and Horst Rottmann

Journal of Economics and Statistics (Jahrbuecher fuer Nationaloekonomie und Statistik), 1994, vol. 213, issue 5, 545-560

Abstract: Starting from some empirical and theoretical considerations we specify a system of simultaneous equations for planning and realization of innovations with dynamic spillovers. We estimate different versions of the model with a bivariate dynamic Random-Effects-Probit-Model. We control for a possible correlation of the explaining variables with the unobserved firm-specific effects. For that purpose we use panel data of the IFO-Konjunkturtest combined with data of the National Income Accounts. It turns out that dynamic spillovers and unobserved heterogeneity exercise a significant influence on the process of innovation. The absolute firm size affects the innovative performance decisively while industry concentration results unimportant.

Date: 1994
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Persistent link: https://EconPapers.repec.org/RePEc:jns:jbstat:v:213:y:1994:i:5:p:545-560

DOI: 10.1515/jbnst-1994-0503

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