Abstract

http://ssrn.com/abstract=1762388
 
 

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Competition and Innovation: The Inverted-U Relationship Revisited


Aamir Rafique Hashmi


National University of Singapore

February 16, 2011


Abstract:     
I re-examine the inverted-U relationship between competition and innovation (originally modeled and tested by Aghion et al. (2005)) by using data from publicly traded manufacturing firms in the US. I control for the possible endogeneity of competition by using various measures of foreign competition as instruments. I find a positive relationship between competition (as measured by the inverse of markups) and innovation (as measured by citation-weighted patents). The positive relationship is robust to many alternative assumptions and specifications. To reconcile the positive relationship in the US data with the inverted-U relationship that Aghion et al. (2005) find in the UK data, I modify their theoretical model and show that the modified model can explain both positive and inverted-U relationships. The key theoretical assumption is that the US manufacturing industries are technologically more neck-and-neck than their counterparts in the UK. There is some, though not strong, support for this assumption in the data.

Number of Pages in PDF File: 48

Keywords: Competition and Innovation, Market Structure and Innovation, Schumpeterian Hypothesis

JEL Classification: L10, O30

working papers series


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Date posted: February 17, 2011  

Suggested Citation

Hashmi, Aamir Rafique, Competition and Innovation: The Inverted-U Relationship Revisited (February 16, 2011). Available at SSRN: http://ssrn.com/abstract=1762388 or http://dx.doi.org/10.2139/ssrn.1762388

Contact Information

Aamir Rafique Hashmi (Contact Author)
National University of Singapore ( email )
1 Arts Link, AS2 #05-08
Singapore, 117570
Singapore
HOME PAGE: http://aamirhashmi.com
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