| 2.
| Abolishing green rates : the effects on cereals, sugar, and oilseeds in West Germany (English) | 1991/03/31 | WPS607 | Policy Research Working Paper |
| 3.
| Agriculture and German reunification (English) | 1997/03/31 | WDP355 | Publication |
| 6.
| Deposit insurance as private club - Is Germany a model? (English) | 2001/02/28 | WPS2559 | Policy Research Working Paper |
| 7.
| Differentiated products and evasion of import tariffs (English) | 2007/02/01 | WPS4123 | Policy Research Working Paper |