DIW Weekly Report 4/2008, pp. 41-46
SME Survey 2007 of the Landesbank Berlin
On the wages of locomotive drivers at Deutsche Bahn AG
DIW Weekly Report 43/2007, pp. 621-629
How to regulate the postal industry
an economic approach
DIW Weekly Report 4/2008, pp. 41-46
DIW Weekly Report 43/2007, pp. 621-629
an economic approach