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http://ssrn.com/abstract=1330154
 
 

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R&D Intensity and the NPD Portfolio


Raul O. Chao


University of Virginia - Darden School of Business

Stelios Kavadias


University of Cambridge - Judge Business School

January 20, 2009


Abstract:     
A key metric for the assessment of innovative activity at the firm level is R&D intensity. R&D intensity is the ratio of a firm's R&D investment to its revenue (the percentage of revenue that is reinvested in R&D). Empirical and anecdotal evidence suggests that R&D intensity within an industry is remarkably consistent. Despite this consistency in R&D spending, firms tend to be differentiated with respect to their NPD portfolio strategy and overall performance. This study aims to explain the observed consistency in R&D intensity for firms within an industry, despite the varying choices in terms of how much the firm invests in R&D and how resources are allocated among projects in a portfolio. We consider the implications of firm level factors, such as NPD portfolio composition, as well as industry level factors, such as competition intensity and environmental stability. We find that R&D intensity alone does not explain firm performance. Rather, it is the proper alignment between R&D intensity (how much the firm invests) and NPD portfolio strategy (how the firm invests the money) that drives profitability. More importantly, the proper alignment critically depends on two industry factors - competition intensity and environmental stability.

Number of Pages in PDF File: 30

Keywords: Research and Development, New Product Development, R&D Intensity, Innovation, Portfolio Management

JEL Classification: O32, D20

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Date posted: January 22, 2009 ; Last revised: May 1, 2013

Suggested Citation

Chao, Raul O. and Kavadias, Stelios, R&D Intensity and the NPD Portfolio (January 20, 2009). Available at SSRN: http://ssrn.com/abstract=1330154 or http://dx.doi.org/10.2139/ssrn.1330154

Contact Information

Raul O. Chao (Contact Author)
University of Virginia (UVA) - Darden School of Business ( email )
P.O. Box 6550
Charlottesville, VA 22906-6550
United States
434-982-2681 (Phone)
Stylianos Kavadias
University of Cambridge - Judge Business School ( email )
Trumpington Street
Cambridge, Cambridgeshire CB2 1AG
United Kingdom
HOME PAGE: http://www.jbs.cam.ac.uk/research/kavadiass.html
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