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Discussion Paper Details
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Title: The Effects of Entry on Incumbent Innovation and Productivity
Author(s): Philippe Aghion, Richard Blundell, Rachel Griffith, Peter Howitt and Susanne Prantl
Publication Date: October 2005
Keyword(s): entry, growth and innovation
Programme Area(s): Industrial Organization
Abstract: How does firm entry affect innovation incentives and productivity growth in incumbent firms? Micro-data suggests that there is heterogeneity across industries - incumbents in technologically advanced industries react positively to entry, but not in laggard industries. To explain this pattern, we introduce entry into a Schumpeterian growth model with multiple sectors which differ by their distance to the technological frontier. We show that entry threat spurs innovation incentives in technologically advanced sectors - successful innovation allows incumbents to prevent entry. In laggard sectors it discourages innovation - increased entry reduces incumbents' expected rents from innovating. We find that the empirical patterns hold using rich micro-level productivity growth and patent panel data for the UK, and controlling for the endogeneity of entry by exploiting the large number of policy reforms undertaken during the Thatcher era.
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Bibliographic Reference
Aghion, P, Blundell, R, Griffith, R, Howitt, P and Prantl, S. 2005. 'The Effects of Entry on Incumbent Innovation and Productivity'. London, Centre for Economic Policy Research. https://cepr.org/active/publications/discussion_papers/dp.php?dpno=5323