Discussion paper DP8374 Smiling is a Costly Signal of Cooperation Opportunities: Experimental Evidence from a Trust Game Paul Seabright Astrid Hopfensitz Samuele Centorrino Elodie Djemai Manfred Milinski 1 May 2011 Industrial Organization D03 D85 D87 Z13
Discussion paper DP6822 Investment, Resolution of Risk, and the Role of Affect Frans A.A.M. van Winden Astrid Hopfensitz Michal Krawczyk 9 May 2008 Industrial Organization C91 D81 G11
Discussion paper DP6038 Dynamic Choice, Independence, and Emotions Frans A.A.M. van Winden Astrid Hopfensitz 14 Jan 2007 Industrial Organization A12 C91 D81