Kate M Laffan1,2, Paul H Dolan3. 1. The Geary Institute for Public Policy and the School of Economics, University College Dublin, Dublin, Ireland. kate.laffan@ucd.ie. 2. The Psychological and Behavioural Science Department, The London School of Economics and Political Science, London, UK. kate.laffan@ucd.ie. 3. The Psychological and Behavioural Science Department, The London School of Economics and Political Science, London, UK.