1. University of Oxford Nuffield College, , New Road, Oxford, OX1 1NF, UK
2. Queensland University of Technology , 2 George St, Brisbane City QLD 4000, Australia
3. Vienna University of Economics and Business , Welthandelspl. 1, 1020 Wien, Austria
4. University of Santiago of Chile (USACH) Economics Department, , Avenida Libertador Bernardo O'Higgins nº 3363, Estación Central, Santiago, Chile
5. USACH Santiago Centre for Experimental Social Sciences , Avenida Libertador Bernardo O'Higgins nº 3363, Estación Central, Santiago, Chile
6. University of Oxford Health Economics Research Centre, , Richard Doll Building, Old Road Campus, Headington, Oxford OX3 7LF, UK