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Dual selection criteria with multiple alternatives : migration, work status, and wages
Vijverberg, Wim P. M., (1991)
Testing for labor market duality : the private wage sector in Côte d'Ivoire
Vijverberg, Wim P. M., (1990)
Profits from self-employment : a case study of Côte d'Ivoire
Vijverberg, Wim P. M., (1988)