http://hdl.handle.net/10366/138247 Thu, 23 Apr 2026 03:50:34 GMT 2026-04-23T03:50:34Z http://hdl.handle.net/10366/141410 [ES] We include endogenous differential information in a model with sequential trade and incomplete financial participation. Agents update information through market signals given by commodity prices and asset deliveries. Information acts over admissible strategies and consumption tastes, allowing discontinuities in preferences and choice sets. Therefore, equilibrium may cease to exist. However, internalizing the compatibility between information and consumption through preferences, and without requiring either financial survival assumptions or fully revealing prices, equilibrium existence can be ensured. Thu, 01 Jan 2015 00:00:00 GMT http://hdl.handle.net/10366/141410 2015-01-01T00:00:00Z http://hdl.handle.net/10366/138251 [EN]Adolescent reproductive health is part of internationally agreed development goals but unmarried adolescents are often left out of the picture despite higher contraceptive demand and prevalence in this group. Sánchez-Páez and Ortega (2018) show the importance of increasing prevalence in explaining recent declines in adolescent fertility and the potentially larger effect of meeting current unmet needs Sat, 01 Sep 2018 00:00:00 GMT http://hdl.handle.net/10366/138251 2018-09-01T00:00:00Z http://hdl.handle.net/10366/138250 [EN]BACKGROUND: Adolescent reproductive health is part of internationally agreed development goals. Unmarried adolescents are not commonly included in global monitoring of contraceptive use despite the more severe consequences of unintended childbearing for them. OBJECTIVE: We document levels and trends of contraceptive prevalence and demand for married and sexually active unmarried adolescent women aged 15–19 in Latin America and sub- Saharan Africa. We estimate the effect of adolescent contraceptive use and marital status on fertility and the impact of meeting current demand. METHODS: We propose a fertility model informed by the proximate determinants framework separating adolescents by marital status. Linear Mixed Model estimates are based on aggregate data from 120 DHS surveys for 34 developing countries. RESULTS: Increasing contraceptive prevalence has already reduced adolescent fertility by 6.8% in Latin America and 4.1% in sub-Saharan Africa. Meeting the total demand for contraceptives of unmarried adolescents would lead to an additional decrease in fertility of 8.9% and 17.4% respectively. CONCLUSIONS: Contraceptive demand and prevalence are generally higher for sexually active unmarried adolescent women than for those married. Increasing prevalence has already had an impact in declining fertility, but there is a potentially larger effect if high levels of unmet need are eliminated, particularly in sub-Saharan Africa. Such reduction would have a significant impact on adolescent health. CONTRIBUTION : We provide evidence of the importance of contraceptive use of unmarried sexually active adolescent women in explaining trends in adolescent fertility. We estimate the potential effect of meeting the contraceptive needs of married and unmarried adolescents on unintended childbearing. Mon, 01 Jan 2018 00:00:00 GMT http://hdl.handle.net/10366/138250 2018-01-01T00:00:00Z http://hdl.handle.net/10366/138249 [EN]We provide a non-cooperative game for the private provision of col- lective goods where the distribution of the levels of utilization matters. This approach allows us to deep the analysis of altruistic behaviors, neutrality results, congestions issues and further externalities captured within our framework. Mon, 01 Jan 2018 00:00:00 GMT http://hdl.handle.net/10366/138249 2018-01-01T00:00:00Z http://hdl.handle.net/10366/138248 [ES]Este proyecto va dirigido al estudio de los conceptos y los patrones de la exclusión social desde una perspectiva económica. Desde el punto de vista teórico, se pretende plantear modelos que analicen las implicaciones del altruismo en relación a la lucha contra situaciones de pobreza y exclusión social, profundizando en el estudio con las herramientas que proporciona la economía experimental. Desde el punto de vista empírico, se analizan los factores que han llevado a retrocesos en la dimensión de pobreza y exclusión social de la estrategia Europa 2020. Los indicadores AROPE se basan únicamente en el recuento de excluidos y, en consecuencia, no incorporan el grado de intensidad de la exclusión que es la base de los indicadores multidimensionales de la pobreza como el IPM. Por ello, se plantea dar definiciones alternativas de medidas que permitan caracterizar la sensibilidad de los indicadores de pobreza y exclusión social, integrando en la medición la proporción de excluidos con la intensidad de la exclusión. Se pretende identificar patrones de exclusión y grupos de especial riesgo, estudiando la contribución de los posibles factores causales. Mon, 01 Jan 2018 00:00:00 GMT http://hdl.handle.net/10366/138248 2018-01-01T00:00:00Z