1955 - , World Bank and Dep. of Economics; Tulane Univ.; New Orleans; Louisiana (1988); Population and Human Resources Department (1991); World Bank's Human Resources Div. for Mexico and Latin America (1994)
1955 - , World Bank and Dep. of Economics; Tulane Univ.; New Orleans; Louisiana (1988); Population and Human Resources Department (1991); World Bank's Human Resources Div. for Mexico and Latin America (1994)