Etude preparatoire de l'evaluation a Mi-Parcours du Projet IIMI-PMI-Niger: Rapport final - Etude realisee a la demande du Projet IIMI-PMI-Niger sous contrat en date du 18-10-1994. In FrenchPreparatory study of the Mid-Term Project IIMI-PMI-Niger: final report - study conducted at the request of the Project IIMI-PMI-Niger contract dated 18-10-1994. In French