Overview
This website was conceived, designed and brought into the world during the PhD period of François Perruchas with the collaboration of Nicolò Barbieri and Davide Consoli.
Our primary goal is to generate and analyse empirical evidence on the distribution of environmental patenting activity by countries, over time and by domain of specialisation. The main data source is PATSTAT 2016a. To identify and assign patents to a specific "green" domain we used the ENV-TECH classification (OECD, 2016). Subsequently, we geolocalised patents using information on inventor's address at city level. Both dimensions are scalable, meaning that the data can be analysed at various levels of geographical (i.e. metropolitan areas, regions, state, country) and of green domain (i.e. 4.1: Renewable Energy Generation contains 4.1.1: Wind energy; 4.1.2: Solar thermal energy; 4.1.3: Solar photovoltaic energy; et cetera) aggregation. Last but not least, we developed a methodology to assign each green technology to a particular life cycle stage. This allows us to track the relative development of each technology relative to others, and to gauge the degree of specialisation and diversification of each geographical unit.
This website is a free, public resource intended to advance the understanding of green technology. We encourage collaboration on and sharing of the concepts, visualizations and data contained herein. When using our data, please cite Perruchas, F., Consoli, D. and Barbieri, N. (2020) "Specialisation, diversification and the ladder of green technology development". Research Policy, 49 (3).
We gratefully acknowledge the financial support of CSIC and of Ministerio de Economía y Empresa de España (ECO2017-86976-R). We also thank IFRIS and RISIS for providing us access to an improved version of PATSTAT and to cortext.net.
If you are interested in working with this data, do not hesitate to get in touch!
Team members
