The qualitative comparative analysis (QCA) methodology relies on in-depth case studies as a key data source. The country case studies for renewable energy were carried out by an experienced group of sector specialists that included (in alphabetical order) Varadan Atur, Noureddine Berrah, Enno Heijndermans, Ihsan Kaler Hurkan, Ramachandra Jammi, Migara Jayawardena, Fernando Lecaros, Andres Liebenthal, Alexey Morozov, and Dennis Reyes. The case study work was coordinated by Joy Butscher. The QCA modeling was carried out by Claude Rubinson. The case study structure and QCA scoring was developed by Noureddine Berrah, Migara Jayawardena, and Ryan Watkins, who together with Claude Rubinson analyzed the QCA results.

This paper was produced as part of the Methodological Paper Series sponsored by the Independent Evaluation Group’s Methods Advisory Function. The authors are grateful for the feedback provided by the peer reviewers: Lauren Kelly and Ray Rist. In addition, the authors would like to thank the editors and staff of the Paper Series for their comments and contributions: Jos Vaessen, Ariya Hagh, Sylvia Otieno, Maurya West Meiers. A special thanks to Amanda O’Brien, Kristen Milhollin, Fernanda Macedo, and Luísa Ulhoa for their support in editing, production, and graphic design.

Although many people contributed to the exercise and the preparation of this paper, it is noted that the findings, interpretations, and conclusions expressed in this paper are entirely those of the authors and should not be attributed in any manner to the World Bank Group, to members of its Board of Executive Directors, or to the countries they represent.