1 Article forthcoming at Corporate Social Responsibility and Environmental Management The Effect of Corporate Social Performance on the Financial Performance of Business-to-Business and Business-to-Consumer Firms Jonathan Luffarelli * Montpellier Business School 2300 Avenue des Moulins, 34080, Montpellier, France j.luffarelli@montpellier-bs.com Panos Markou Judge Business School, University of Cambridge Trumpington St., Cambridge, CB2 1AG, United Kingdom p.markou@jbs.cam.ac.uk Antonios Stamatogiannakis IE Business School, IE University Calle de María de Molina, 11-13-15, 28006 Madrid, Spain antonios.stamatogiannakis@ie.edu Dilney Gonçalves IE Business School, IE University Calle de María de Molina, 11-13-15, 28006 Madrid, Spain dilney.goncalves@ie.edu * Jonathan Luffarelli is the corresponding author Acknowledgements: We sincerely thank Akhil Bhardwaj, Peter Bryant, Ko de Ruyter, Polina Landgraf, Ammara Mahmood, Tomek Obloj, Shameek Sinha, Haiyang Yang, and Tom van Laer for their comments on earlier versions of this article. Funding and Conflict of Interests: We are grateful for the financial support by Montpellier Business School (Montpellier Research in Management: MRM, EA 4557, Univ. Montpellier), IE Business School’s Seed Funds Programme, and the People Program (Marie Curie Actions) of the European Union’s Seventh Framework Program (FP7/2007-2013) under REA grant agreement No. 298420. The authors have no conflict of interests to declare.