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Erscheinungsjahr: 
2006
Schriftenreihe/Nr.: 
Nota di Lavoro No. 27.2006
Verlag: 
Fondazione Eni Enrico Mattei (FEEM), Milano
Zusammenfassung: 
This study examines whether today’s technical change depends on yesterday’s technical change. We propose to investigate this feedback effect by using the technical-change component of the Malmquist productivity index. This approach can overcome some problems in alternative patent-citation approaches. We apply the approach by estimating the feedback effect from production data of 25 OECD countries for 1980 through 1997. Our model yields evidence on a positive feedback effect with delays up till eight years. These findings are in line with patent-citation studies and bring us closer to a measure of the social returns to R&D.
Schlagwörter: 
Cross-country comparisons
Data envelopment analysis (DEA)
Feedback effect
Malmquist productivity index
Technical change
Two-stage semiparametric estimation
JEL: 
O47
O30
D24
Dokumentart: 
Working Paper

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