Nico L. Van der Sar is Associate Professor of Finance and vice-chairman of the Finance Group at Erasmus School of Economics. In 2011 he received the Umbra Erasmi medal of Erasmus University Rotterdam. Before, he was Assistant Professor of Economic Sciences at Leiden University (1981-1985). He obtained his PhD in 1991 from Erasmus University Rotterdam, his MA in econometrics in 1984 from University of Amsterdam and his MA in mathematics in 1979 from Leiden University. Nico's research interests include decision making under risk and investors' preferences, behavioral finance and stock market anomalies, and initial public offerings. He has published in Journal of Human Resources and Journal of Economic Psychology among other leading academic journals. His book Stock Returns: Ratio and Psychology was published in 2002 by Kluwer (in Dutch). Nico has taught (under)graduate and postgraduate courses on various subjects ranging from investments, corporate finance, financial econometrics to behavioral finance. He received the Erasmus School of Economics award Top Lecturer in 2008.