Autori:
Antonelli, Cristiano,
Gehringer, AgnieszkaTitolo:
Knowledge externalities and demand pull: The European evidencePeriodico:
Università degli Studi di Torino. Dip. Di Economia e Statistica Cognetti de Martiis LEI & BRICK - Lab. Di economia dell'innovazione 'Franco Momigliano', Bureau of Research in Innovation, Complexity and Knowledge, Collegio Carlo Alberto. WP seriesAnno:
2012 - Volume:
9 - Fascicolo:
14 - Pagina iniziale:
1 - Pagina finale:
29This paper elaborates the microeconomic foundations of the demand pull hypothesis stressing the role of vertical knowledge externalities stemming from the
complementarity between know ledge interactions and user-producer transactions. The increase in the demand can pull the rate of technological change in the system when it concerns the derived demand of innova
tive sectors. In this framework, technological change is an emergent property of any dynamic system, where external knowledge made available by each agent
plays a key role in the introduction of innovations by each other agent. Demand pulls the introduction of innovations when and where it comes from innovative cust
omers. Using input output tables that grasp user-producer interactions, the paper provides an empirical test of these hypotheses for 15 European countries in
the years 1995-2007. The evidence confirms that the in crease of total factor productivity of the upstream supplying sectors is positively influenced by the secto
r-level derived demand, according to the rates of introduction of innovations and to the intensity of their user-producer interactions. The policy implications of
the analysis enable to elaborate and implem
ent the notion of a ‘competent’ public demand.
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