Estimating Feedback Effect in Technical Change: A Frontier Approach

V.M. Otto, T.K. Kuosmanen, E.C. van Ierland

Research output: Book/ReportReportAcademic


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
Original languageEnglish
Place of PublicationMilano
PublisherFondazione Eni Enrico Mattei
Number of pages25
Publication statusPublished - 2006

Publication series

NameNote di lavoro della Fondazione Eni Enrico Mattei = Fondazione Eni Enrico Mattei Working Paper Series
PublisherFondazione Eni Enrico Mattei


  • economic growth
  • technical progress
  • technology
  • development
  • patents
  • innovations
  • production costs
  • production economics
  • economic production

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