1 School of Management, University of St. Andrews, Fife KY16 9RJ, United Kingdom; kom@st-andrews.ac.uk conny.wollbrant@economics.gu.se.
2 Department of Economics, School of Business, Economics and Law, University of Gothenburg, 405 30 Gothenburg, Sweden kom@st-andrews.ac.uk conny.wollbrant@economics.gu.se.