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Innovation in Clean Coal Technologies: Empirical Evidence from Firm-Level Patent Data

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  • Wetzel, Heike
  • Kruse, Jürgen

Abstract

This article empirically analyzes supply-side and demand-side factors expected to affect innovation in clean coal technologies. Patent data from 93 national and international patent offices is used to construct new firm-level panel data on 3,648 clean coal innovators over the time period 1978 to 2009. The results indicate that on the supply-side a firm’s history in clean coal patenting and overall propensity to patent positively affects clean coal innovation. On the demand-side we find strong evidence that environmental regulation of emissions, that is CO2, NOX and SO2 , induces innovation in both efficiency improving combustion and after pollution control technologies.

Suggested Citation

  • Wetzel, Heike & Kruse, Jürgen, 2016. "Innovation in Clean Coal Technologies: Empirical Evidence from Firm-Level Patent Data," VfS Annual Conference 2016 (Augsburg): Demographic Change 145913, Verein für Socialpolitik / German Economic Association.
    • Handle: RePEc:zbw:vfsc16:145913
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    More about this item

    JEL classification:

    • C33 - Mathematical and Quantitative Methods - - Multiple or Simultaneous Equation Models; Multiple Variables - - - Models with Panel Data; Spatio-temporal Models
    • O31 - Economic Development, Innovation, Technological Change, and Growth - - Innovation; Research and Development; Technological Change; Intellectual Property Rights - - - Innovation and Invention: Processes and Incentives
    • Q55 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Environmental Economics - - - Environmental Economics: Technological Innovation

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