Sociologist at the Pontifical Catholic University of Peru. MA. in Sociology from the University of Texas, Austin. Ph.D. in Sociology from the University of Texas, Austin, specializing in Demography (Migration Area). His areas of interest include the various dimensions of social demography, economic sociology, and developmental sociology. He has worked on Latin American demography, internal and international migration, urbanization, and education using the perspectives of household demographics, social network analysis, and geographic information systems (GIS).