@unpublished{publication-5338, author={Fehr-Duda, Helga and Bruhin, Adrian and Epper, Thomas and Schubert, Renate}, institution={University of Zurich}, issn={1424-0459}, number={No. 413}, series={Working paper series / Institute for Empirical Research in Economics}, title={Rationality on the Rise: Why Relative Risk Aversion Increases with Stake Size}, year=2009, }