I am getting plenty of reports of internal server errors. I have to go teach and cannot check. Christian Zimmermann FIGUGEGL! Department of Economics University of Connecticut 341 Mansfield Road, Unit 1063 Storrs, CT 06269-1063 http://ideas.repec.org/zimm/ christian.zimmermann at uconn.edu http://ideas.repec.org/e/pzi1.html