SEI has participated in relevant population studies, including the impact assessment of a significant number of important social programs, … for which large field operations have been carried out and millions of surveys have been conducted on households, individuals, and institutions. As an example of population studies, we have managed information to understand the perception of nearly 100,000 citizens regarding the results of government action in relation to the National Development Plans; We have also surveyed members of 10,000 households from the Colombian Longitudinal Survey panel of the University of the Andes-ELCA on several occasions, a figure similar to that of the panel monitored to evaluate Familias en Acción. Read more