First Author:   Tommy Andersson Department of Economics, Lund University tommy.andersson@nek.lu.se   Department of Economics, Lund University, Box 7082 Lund, 220 07, Sweden   +46 (0)46 222 49 70(Phone) +46 (0)46 222 49 70(Fax) http://www.nek.lu.se/NEKTAN/Default.htm