Karen Maas holds a PhD in Economics (Corporate Social Performance: from output measurement to impact measurement). She is endowed professor Accounting and Sustainability at the Open University and academic director of Impact Centre Erasmus (ICE). Karen conducts research in the field of Impact measurement, Sustainability, Social Entreprises and Impact Investing. Karen worked with many for-profit, non-profit and financial organizations to measure their impact. Her work has been published in academic journals like Business & Society, Journal of Business Ethics, American Journal of Evaluation, newspapers and online sources. Karen is a board member of the International association of Business in Society (IABS) and Sustainable and Environmental Management Accounting Network (EMAN).  She is also a member of the Sustainable Finance Lab and Sustainable Pension Investment Lab in The Netherlands.