Papers by Sebastian Martinez
Impact Evaluation in Practice, Second Edition, 2016
Impact Evaluation in Practice, Second Edition, 2016
Using data from a randomized experiment, we find that poor rural Mexican households invested part... more Using data from a randomized experiment, we find that poor rural Mexican households invested part of their cash transfers from the Oportunidades program in productive assets, increasing agricultural income by almost 10 percent after 18 months of benefits. We estimate that for each peso transferred, households consume 74 cents and invest the rest, permanently increasing long-term consumption by about 1.6 cents. Results suggest that cash transfers can achieve long-term increases in consumption through investment in productive activities, thereby permitting beneficiary households to attain higher living standards that are sustained even after transitioning off the program. Comparison conditions The control group received the program 18 months after the treatment group Unit of analysis Household Level Evaluation Period
No. DP0987011. The opinions expressed in this paper are those of the authors alone and do not nec... more No. DP0987011. The opinions expressed in this paper are those of the authors alone and do not necessarily represent the opinions of the organizations where they work or of the funders. The authors have no material or financial interests in the results or opinions expressed in the paper. The views expressed herein are those of the authors and do not necessarily reflect the views of the National Bureau of Economic Research. NBER working papers are circulated for discussion and comment purposes. They have not been peerreviewed or been subject to the review by the NBER Board of Directors that accompanies official NBER publications.
This paper provides empirical evidence on the causal effects that upgrading slum dwellings has on... more This paper provides empirical evidence on the causal effects that upgrading slum dwellings has on the living conditions of the extremely poor. In particular, we study the impact of providing better houses in situ to slum dwellers in El Salvador, Mexico and Uruguay. We experimentally evaluate the impact of a housing project run by the NGO TECHO which provides basic prefabricated houses to members of extremely poor population groups in Latin America. The main objective of the program is to improve household well-being. Our findings show that better houses have a positive effect on overall housing conditions and general well-being: treated households are happier with their quality of life. In two countries, we also document improvements in children's health; in El Salvador, slum dwellers also feel that they are safer. We do not find this result, however, in the other two experimental samples. There are no other noticeable robust effects on the possession of durable goods or in terms of labor outcomes. Our results are robust in terms of both internal and external validity because they are derived from similar experiments in three different Latin American countries.
American Economic Journal: Economic Policy, 2009
We investigate the impact of a large-scale Mexican program to replace dirt floors with cement flo... more We investigate the impact of a large-scale Mexican program to replace dirt floors with cement floors on child health and adult happiness. We find that replacing dirt floors with cement significantly improves the health of young children measured by decreases in the incidence of parasitic infestations, diarrhea, and the prevalence of anemia, and an improvement in children's cognitive development. Additionally, we find significant improvements in adult welfare measured by increased satisfaction with their housing and quality of life, as well as by lower scores on depression and perceived stress scales. (JEL I12, I31, J13, O15)
American Economic Journal: Applied Economics, 2012
Using data from a randomized experiment, we find that poor rural Mexican households invested part... more Using data from a randomized experiment, we find that poor rural Mexican households invested part of their cash transfers from the Oportunidades program in productive assets, increasing agricultural income by almost 10 percent after 18 months of benefits. We estimate that for each peso transferred, households consume 74 cents and invest the rest, permanently increasing long-term consumption by about 1.6 cents. Results suggest that cash transfers can achieve long-term increases in consumption through investment in productive activities, thereby permitting beneficiary households to attain higher living standards that are sustained even after transitioning off the program. (JEL D14, H23, I38, O12)
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Papers by Sebastian Martinez