International audienceIn Sierra Leone, the migration to the diamond fields and the development of cash crops have contributed to the increasing integration of the peasantry in the national and global economy. Based on a study of a small northern chiefdom, the Sella Limba, we describe how the commodification of social relations of production and exchange involved the perversion of “traditional” social relations, based on the anteriority, and finally the break-up of the large domestic groups into smaller units, more precarious. But, marginalized by massive cheap rice imports, these manual agricultures remained at very low level of capital intensity. We look how low labor productivity limits the opportunities for sustainable social and economi...