1. Department of Economics and Statistics, Linnaeus University, Växjö, Sweden and Department of Business and Economics, University of Southern Denmark, Odense, Denmark, peter.sandholtjensen@lnu.se; psj@sam.sdu.dk
2. Department of Business and Economics, University of Southern Denmark, Odense, Denmark, cristinaradu25@yahoo.com
3. Department of Business and Economics, University of Southern Denmark, Odense, Denmark; CAGE, University of Warwick, Coventry, UK and CEPR, London, UK, pauls@sam.sdu.dk