The issue of gender and ethnic monopoly in the informal sector has already been addressed. Several investigations have been carried out in the same vein. The conclusions of most of these studies present ethnic monopoly in the informal sector as the result of several factors. As part of our Master II dissertation, we chose to focus on the subject of "gender and ethnic monopoly in the informal sector in Côte d'Ivoire: the case of tchapalo production and marketing by Lobi women in Agnibilékrou". The particularity of this work lies in the fact that it addresses the question of gender and ethnic monopoly in the production and marketing of tchapalo in the sub-prefecture of Agnibilékrou by Lobi women.