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Mapping energy-efficiency technological advances in home appliances

Author

Listed:
  • Alessandro Palma

    (Department of Economics, Roma Tre University, Italy.)

  • Nicolo Barbieri

    (Deptartment of Economics. University of Bologna, Italy.)

Abstract

The present study uses an original dataset on four large energy-efficient appliances and provides a methodology for: i) mapping components related to energy efficiency improvements; ii) mapping their evolution over time; iii) testing the technological fungibility of these components. Our analysis model exploits an original patent selection process and the concept of technological relatedness using co-occurrence analysis of patent classes as input for Self-Organising Maps, an unsupervised artificial neural network able to represent high-dimensional data in visually attractive and low-dimensional distance-based maps. The results confirm the pervasive nature of energy efficiency to be nested in many technological components. In addition, we show that a dematerialisation process has affected the evolution of energy efficiency technologies over time, in a technological space characterised by a high level of complexity and variety.

Suggested Citation

  • Alessandro Palma & Nicolo Barbieri, 2015. "Mapping energy-efficiency technological advances in home appliances," SEEDS Working Papers 0215, SEEDS, Sustainability Environmental Economics and Dynamics Studies, revised Jan 2015.
    • Handle: RePEc:srt:wpaper:0215
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    File Function: Revised version, 2015
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    More about this item

    Keywords

    energy efficiency; Self-Organizing Maps; patent analysis; home appliances; ICTs;
    All these keywords.

    JEL classification:

    • Q55 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Environmental Economics - - - Environmental Economics: Technological Innovation
    • Q41 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Energy - - - Demand and Supply; Prices
    • O33 - Economic Development, Innovation, Technological Change, and Growth - - Innovation; Research and Development; Technological Change; Intellectual Property Rights - - - Technological Change: Choices and Consequences; Diffusion Processes

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