Demand by product characteristics: measuring solar cell quality over time |
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| Authors: | I Haller H Grupp |
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| Institution: | (1) Institute for Economic Policy Research (IWW), University of Karlsruhe, P.O. Box 6980, 76128 Karlsruhe, Germany;(2) Fraunhofer Institute for Systems and Innovation Research (ISI), Karlsruhe, Germany;(3) Science and Technology Policy Research (SPRU), University of Sussex, Brighton, UK |
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| Abstract: | The purpose of this paper is to investigate the impact of innovation quality as a success factor of companies that satisfy
demand in government-subsidized science-based markets. This paper focuses on the Photovoltaic market in Germany as a case
study. It carries out the analysis in three stages. First, the efficiency of photovoltaic product characteristics is examined
using data envelopment analysis (DEA). Second, by means of a metric re-scaling approach, the technical improvement of solar
modules offered on the German market is analyzed over time. Next, the results of the second stage are compared to demand growth
(evolution of market shares). In conclusion, it can be shown that innovation quality in science-based markets is often an
explanation of long-term growth, but occasionally a reduction of performance characteristics meets demand.
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| Keywords: | Product characteristics Quality change and demand Metric re-scaling Photovoltaics |
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