"Arbeidseconomie." . . "Tyskland." . . . . "Arbeitszeit Arbeitsangebot USA Deutschland." . . . . . . . . "Why Do Americans and Germans Work Different Hours?"@en . "Why Do Americans and Germans Work Different Hours?" . . . . . . "Why do Americans and Germans work different hours ?" . . . . . . . . . . . . . . . . . "Why do Americans and Germans work different hours?" . "Why do Americans and Germans work different hours?"@en . . . . . . . . . . . "National Bureau of Economic Research" . . "arbejdstid." . . "Arbeidstijd." . . "USA." . . "velfærdsstat, socialpolitik." . . "National Bureau of Economic Research (Estados Unidos)" . . "overenskomster." . .