After receiving Master’s degrees in theoretical physics and econometrics from the Catholic University of Nijmegen and the Erasmus University of Rotterdam, Maarten C.M. Vendrik gained his PhD in economics from Maastricht University. He worked at the Institute of Theoretical Biology of Leiden University, the macroeconomics department of Erasmus University Rotterdam, and the economics department of Maastricht University. Currently, he holds a position as an emeritus senior assistant professor in the latter department. Moreover, he is research fellow of the Institute of the Study of Labor IZA at Bonn, external participant of the Erasmus Happiness Economics Research Organization (EHERO) at Rotterdam, and fellow of the Research Centre for Education and the Labour Market (ROA) at Maastricht. Maarten has published widely in high-standing international journals in economics and theoretical physics. His current research interests mainly include happiness economics, labour economics, and applied econometrics. He takes a special interest in the dynamics of income and happiness on a micro as well as macro level.