Caiza, J., Salas, M., Guevara, C. and Ramírez, J. 2021. Identification of factors of vulnerability of self-employed workers and in relation to dependency in times of COVID-19 in Ecuador. Cuestiones Económicas. 31, 3 (Nov. 2021), Autores: Josselyn Caiza , Marjorie Salas , Carolina Guevara y José Ramírez.