Please use this identifier to cite or link to this item: http://hdl.handle.net/10419/103415
Authors: 
Kruse, Jürgen
Wetzel, Heike
Year of Publication: 
2014
Series/Report no.: 
EWI Working Paper 14/12
Abstract: 
We examine the effect of energy prices and technological knowledge on innovation in green energy technologies. In doing so, we consider both demand-pull effects, which induce innovative activity by increasing the expected value of innovations, and technology-push effects, which drive innovative activity by extending the technological capability of an economy. Our analysis is conducted using patent data from the European Patent Office on a panel of 26 OECD countries over the period 1978-2009. Utilizing a dynamic count data model for panel data, we analyze 11 distinct green energy technologies. Our results indicate that the existing knowledge stock is a significant driver of green energy innovation for all technologies. Furthermore, the results suggest that energy prices have a positive impact on innovation for some but not all technologies and that the effect of energy prices and technological knowledge on green energy innovation becomes more pronounced after the Kyoto protocol agreement in 1997.
Subjects: 
Green energy technologies
innovation
patents
demand-pull
technology-push
dynamic count data model
JEL: 
C33
O31
Q40
Q42
Q55
Document Type: 
Working Paper

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