KTH/CESIS Working Paper Series in Economics and Institutions of Innovation
Innovation, R&D and Productivity - assessing alternative specifications of CDM-models
() and Hans Lööf
Abstract: This paper applies a CDM-model framework to depict the
successive links (correlations) between (i) innovation expenditure, (ii)
innovation output, and (iii) firm productivity. The CDM model has become
popular in many countries among scholars using data from the Community
Innovation Survey (CIS). First, the study contrasts a general structural
OECD version of the model against a model with country-specific design.
Second, the study examines the gains from separating the labour force into
ordinary and knowledge labour – as a means to avoid double counting of R&D
investments. Third, the paper examines the difference between recognising a
firm as a member of an unspecified company group versus a multinational
group. Fourth, the paper explores how well sales per employee serves as a
proxy for labour productivity proper. Fifth, the paper scrutinises the
quality of CIS information by comparing key variables from the voluntary
CIS survey with the same variables (for the same firms) recorded in the
compulsory and audited register data in Sweden.
Keywords: Productivity; Innovation; R&D; CDM-model; (follow links to similar papers)
JEL-Codes: O31; O32; (follow links to similar papers)
34 pages, January 15, 2009
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