First Author:   Manfred Nermuth Dept. of Economics, University of Vienna manfred.nermuth@univie.ac.at   Dept. of Economics, University of Vienna, Hohenstaufengasse 9 Vienna, A-1010, Austria       Second Author: Carlos Alos-Ferrer Dept. of Economics, University of Vienna, Austria carlos.alos-ferrer@univie.ac.at   Dept. of Economics, University of Vienna, Hohenstaufengasse 9 Vienna, A-1010, Austria       http://mailbox.univie.ac.at/Carlos.Alos-Ferrer