Vorliegendes Arbeitspapier beschäftigt sich mit der Infrastruktur des Luftverkehrs in NRW.

In order to con¯ne excessive levels of temporary layo®s, US ¯rms are taxed - albeit incom-pletely - according to the unemployment insurance bene¯ts claimed by their laid o® workers.In contrast, German construction ¯rms are not charged according to their layo® historyand should thus have...