Article ID Journal Published Year Pages File Type
897088 Technological Forecasting and Social Change 2009 15 Pages PDF
Abstract

This article has been retracted: please see Elsevier Policy on Article Withdrawal (http://www.elsevier.com/locate/withdrawalpolicy).This article has been retracted at the request of the authors. The first author proactively informed the editor that the paper uses data from the same dataset as other articles by the first author, including Lichtenthaler, U. and Ernst, H., Research Policy, 36(2007)37–55. http://dx.doi.org/10.1016/j.respol.2006.08.005. The first author takes full responsibility.

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