| 3.
| Computers in schools : a qualitative study of Chile and Costa Rica (English) | 1998/03/31 | 18908 | Working Paper (Numbered Series) |
| 4.
| The role of choice in the transition to a funded pension system (English) | 1998/09/30 | 20109 | Working Paper (Numbered Series) |
| 5.
| Forest management and competing land uses : an economic analysis for Costa Rica (English) | 1993/10/31 | 19821 | Working Paper (Numbered Series) |
| 6.
| GEF country portfolio evaluation : Costa Rica (1992-2005) (English) | 2007/02/01 | 60786 | Working Paper (Numbered Series) |
| 7.
| Financing environmental services : the Costa Rican experience (English) | 1998/06/30 | 20014 | Working Paper (Numbered Series) |
| 10.
| Costa Rica - Strengthening links to the world economy (English) | 1992/07/31 | 26160 | Working Paper (Numbered Series) |