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Poolability and Aggregation Problems of Regional Innovation Data: An Application to Nanomaterial Patenting

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Author Info

  • Roberto Patuelli

    () (Institute for Economic Research (IRE), University of Lugano, Switzerland; The Rimini Centre for Economic Analysis, Italy)

  • Andrea Vaona

    () (Institute for Economic Research (IRE), University of Lugano, Switzerland; Kiel Institute for the World Economy, Germany)

  • Christoph Grimpe

    () (ZEW Centre for European Economic Research, Mannheim, Germany; Catholic University of Leuven, Belgium; University of Zurich, Switzerland)

Abstract

Research and development (R&D) in the field of nanomaterials is expected to be a major driver of innovation and economic growth. In this respect, many countries, as national systems of innovation, have established support programs offering subsidies for industry- and government-funded R&D. Consequently, it is of great interest to understand which factors facilitate the creation of new technological knowledge. The existing literature has typically addressed this question by employing a knowledge production function based on firm-, regional- or even country-level data. Estimating the effects for the entire national system of innovation, however, implicitly assumes poolability of regional data. We apply our reasoning to Germany, which has well-known – and wide – regional disparities, for example between the former East and West. Based on analyses at the level of NUTS-3 regions, we find different knowledge production functions for the East and the West. Moreover, we investigate how our results are affected by the adoption of alternative aggregation levels. Our findings have implications for further research in the field, that is, a careful evaluation of poolability and aggregation is required before estimating knowledge production functions at the regional level. Policy considerations are offered as well.

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Bibliographic Info

Paper provided by USI Università della Svizzera italiana in its series Quaderni della facoltà di Scienze economiche dell'Università di Lugano with number 0810.

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Length: 20 pages
Date of creation: Dec 2008
Date of revision:
Handle: RePEc:lug:wpaper:0810

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Web page: http://www.library.lu.usi.ch

Related research

Keywords: nanotechnology; patents; poolability; aggregation; Germany; spatial autocorrelation; spatial filtering;

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  1. Berg, Jeroen van den & Candelon, Bertrand & Urbain, Jean-Pierre, 2008. "A cautious note on the use of panel models to predict financial crises," Open Access publications from Maastricht University urn:nbn:nl:ui:27-16464, Maastricht University.
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Cited by:
  1. P. Brighi & R. Patuelli & G. Torluccio, 2012. "Self-Financing of Traditional and R&D Investments: Evidence from Italian SMEs," Working Papers wp845, Dipartimento Scienze Economiche, Universita' di Bologna.

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