Jena Economic Research Papers 2007 jportal_jpjournal_00000016 /content/main/journals/jer.xml jportal_class_00000039 jportal_class_00000040 jportal_class_00000041 jportal_class_00000042 jportal_class_00000013 jportal_class_00000011 template_jer 2007-03-23T15:35:08.165Z 2013-01-17T08:45:21.255Z