| 17.
| Regional economic integration and agricultural trade (English) | 1997/08/31 | WPS1805 | Policy Research Working Paper |
| 18.
| Tax effects on investment in Morocco (English) | 1995/08/31 | 20958 | Departmental Working Paper |
| 20.
| Financial distress of industrial firms on the Greek banking system (English) | 1990/04/30 | WPS57 | Policy Research Working Paper |