First Author:   Anders Poulsen School of Economics, University of East Anglia a.poulsen@uea.ac.uk   School of Economics, University of East Anglia Norwich, NR47TJ, United Kingdom   +441603591066(Phone) +441603591066(Fax) http://www.uea.ac.uk/eco/ecopeople/PoulsenA.html Second Author: Odile Poulsen School of Economics, University of East Anglia o.poulsen@uea.ac.uk   School of Economics, University of East Anglia Norwich, NR47TJ, United Kingdom   +441603592714(Phone) +441603456259(Fax) http://www.uea.ac.uk/eco/ecopeople/PoulsenO.html