488 resultados para Abu Hamad


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Despite the professed claims of microcredit alleviating poverty, little is known about what kind of credit contract is suitable for extremely poor households, also called the ultra-poor. To fill this knowledge gap, we initiated a field experiment in the river islands of northern Bangladesh, where a substantial portion of dwellers could be categorized as ultra-poor due to cyclic floods. We randomly offered four types of loans to such dwellers: regular small cash loans with one-year maturity, large cash loans with three-year maturity both with and without a one-year grace period, and in-kind livestock loans with three-year maturity and a one-year grace period. We compared uptake rates as well as the determinants of uptake and found that the uptake rate is the lowest for the regular contract, followed by the in-kind contract. Contrary to prior belief, we also found that the microcredit demand by the ultra-poor is not necessarily small, and in particular the ultra-poor are significantly more likely to join a microcredit program than the moderately poor if a grace period with longer maturity is attached to a large amount of credit, irrespective of whether the credit is provided in cash or in kind. This paper provides evidence that a typical microcredit contract with one-year maturity and without a grace period is not attractive to the ultra-poor. Microfinance institutions may need to design better credit contracts to address the poor's needs.

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This study examines the significance of food crop diversification as a household risk mitigating strategy to achieve "self-sufficiency" to ensure food security during the civil conflict in Cote d’Ivoire. The main motivation for seeking self-sufficiency stems from the fact that during the period of heightened tension due to conflict, the north–south divide set by the UN peacekeeping line disrupted the agricultural supply chain from the food surplus zone, Savane in the north. While we theoretically predict a positive effect on crop diversification because of interrupted food supply chain, we also consider a negative effect due to the covariate shocks. We find robust and statistically significant empirical outcomes supporting such claims. The baseline outcomes withstand a series of robustness checks. The net effect of conflict on crop diversification is positive but not statistically significant. In addition, we find that increasing vulnerability to poverty and food insecurity during conflict seems to be the underlying factors that motivate farm households to adopt such coping strategies.

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Despite continuous efforts to improve the coverage, the access to electricity remains insufficient in many developing countries, particularly in geographically challenged locations, due mostly to the high cost of grid extension. To rigorously investigate the effectiveness of solar products as an alternative in remote areas, we conducted a randomized controlled trial in river islands of northern Bangladesh where no grid-based electricity is available. We found that solar lanterns significantly increased home study hours among schooled children, especially in the night and before exams. School attendance rate also initially increases due to the provision of solar lamps, although such effects fade away over time. The increased study time and initial school attendance rate, however, did not improve children's exam results. We also found marginal improvements on health-related indicators, such as eye redness and irritation, but negligible impacts on respiratory indicators. Households that received solar lanterns substituted the traditional lighting sources with modern technology, leading to a significant decrease in annual biomass fuel consumptions, particularly kerosene. Finally, treated households showed a greater self-reported willingness to purchase solar products compared with the control group.

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We use a panel dataset from Bangladesh to examine the relationship between fertility and the adoption of electricity with the latter instrumented by infrastructure development and the quality of service delivery. We find that the adoption of electricity reduces fertility, and this impact is more pronounced when the household already has two or more children. This observation can be explained by a simple household model of time use, in which adoption of electricity affects only the optimal number of children but not necessarily current fertility behavior if the optimal number has not yet been reached.

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By investigating the educational expenditure of children over the ten years (2000 to 2010), we evaluate whether there exists any gender specific discrepancy at the household level and the trend of such discrepancy over the years. Using three rounds of nationally representative Household Income & Expenditure Surveys this study reveals that households spend less on education for their school-going girls compared to boys. By disaggregating the total expenditure into fixed and variable components, we find persistent gender imbalance in educational expenditure where households provide better quality of education for boys. Moreover, we find that gender based discrepancy has a very persistent trend and does not show any significant sign of narrowing the gap over the years. Cohort wise difference-in-difference estimation also reveals that the gap has initially widened and later converged but has not diminished beyond the initial level of discrepancy, which may warrant targeted policy intervention.

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With over 700 million illiterate adults in the world, many governments have implemented adult literacy programs across the world, although typically with low rates of success partly because the quality of teaching is low. One solution may lie in the standardization of teaching provided by computer-aided instruction. We present the first rigorous evidence of the effectiveness of a computer-based adult literacy program. A randomized control trial study of TARA Akshar Plus, an Indian adult literacy program, was implemented in the state of Uttar Pradesh in India. We find large, significant impacts of this computer-aided program on literacy and numeracy outcomes. We compare the improvement in learning to that of other traditional adult literacy programs and conclude that TARA Akshar Plus is effective in increasing literacy and numeracy for illiterate adult women.

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We offer micro-econometric evidence for a positive impact of rural electrification on the nutritional status of children under five as measured by height-for-age Z-score (HAZ) in rural Bangladesh. In most estimates, access to electricity is found to improve HAZ by more than 0.15 points and this positive impact comes from increased wealth and reduced fertility, even though the evidence for the latter is weak. We also analyze the causal channels through the local health facility and exposure to television. We find no evidence for the presence of the former channel and mixed evidence for the latter.

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This study quantitatively explores the changing population geography in Bengal, with a particular focus on Partition in India in 1947 and Independence of Bangladesh in 1971. Based on decadal census data from 1901 to 2001 at the district level, this paper explores how trends in regional population growth evolved with such historical events. Following Redding and Sturm (2008), Differences-in-Differences estimation is also employed. Estimation results show that there were different shocks on both sides and from both events. In West Bengal, the change in the regional population trends occurred in 1947 and remained similar thereafter. On the other hand, in East Bengal, the population growth became statistically significant after 1971. Further robustness checks show that the impacts were not uniform with respect to the distance from the border. Overall analyses show that the emergence of the international border in Bengal had asymmetric impacts on both sides.

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The research in this thesis is related to static cost and termination analysis. Cost analysis aims at estimating the amount of resources that a given program consumes during the execution, and termination analysis aims at proving that the execution of a given program will eventually terminate. These analyses are strongly related, indeed cost analysis techniques heavily rely on techniques developed for termination analysis. Precision, scalability, and applicability are essential in static analysis in general. Precision is related to the quality of the inferred results, scalability to the size of programs that can be analyzed, and applicability to the class of programs that can be handled by the analysis (independently from precision and scalability issues). This thesis addresses these aspects in the context of cost and termination analysis, from both practical and theoretical perspectives. For cost analysis, we concentrate on the problem of solving cost relations (a form of recurrence relations) into closed-form upper and lower bounds, which is the heart of most modern cost analyzers, and also where most of the precision and applicability limitations can be found. We develop tools, and their underlying theoretical foundations, for solving cost relations that overcome the limitations of existing approaches, and demonstrate superiority in both precision and applicability. A unique feature of our techniques is the ability to smoothly handle both lower and upper bounds, by reversing the corresponding notions in the underlying theory. For termination analysis, we study the hardness of the problem of deciding termination for a speci�c form of simple loops that arise in the context of cost analysis. This study gives a better understanding of the (theoretical) limits of scalability and applicability for both termination and cost analysis.

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Aboveground tropical tree biomass and carbon storage estimates commonly ignore tree height (H). We estimate the effect of incorporating H on tropics-wide forest biomass estimates in 327 plots across four continents using 42 656 H and diameter measurements and harvested trees from 20 sites to answer the following questions: 1. What is the best H-model form and geographic unit to include in biomass models to minimise site-level uncertainty in estimates of destructive biomass? 2. To what extent does including H estimates derived in (1) reduce uncertainty in biomass estimates across all 327 plots? 3. What effect does accounting for H have on plot- and continental-scale forest biomass estimates? The mean relative error in biomass estimates of destructively harvested trees when including H (mean 0.06), was half that when excluding H (mean 0.13). Power- andWeibull-H models provided the greatest reduction in uncertainty, with regional Weibull-H models preferred because they reduce uncertainty in smaller-diameter classes (?40 cm D) that store about one-third of biomass per hectare in most forests. Propagating the relationships from destructively harvested tree biomass to each of the 327 plots from across the tropics shows that including H reduces errors from 41.8Mgha?1 (range 6.6 to 112.4) to 8.0Mgha?1 (?2.5 to 23.0). For all plots, aboveground live biomass was ?52.2 Mgha?1 (?82.0 to ?20.3 bootstrapped 95%CI), or 13%, lower when including H estimates, with the greatest relative reductions in estimated biomass in forests of the Brazilian Shield, east Africa, and Australia, and relatively little change in the Guiana Shield, central Africa and southeast Asia. Appreciably different stand structure was observed among regions across the tropical continents, with some storing significantly more biomass in small diameter stems, which affects selection of the best height models to reduce uncertainty and biomass reductions due to H. After accounting for variation in H, total biomass per hectare is greatest in Australia, the Guiana Shield, Asia, central and east Africa, and lowest in eastcentral Amazonia, W. Africa, W. Amazonia, and the Brazilian Shield (descending order). Thus, if tropical forests span 1668 million km2 and store 285 Pg C (estimate including H), then applying our regional relationships implies that carbon storage is overestimated by 35 PgC (31?39 bootstrapped 95%CI) if H is ignored, assuming that the sampled plots are an unbiased statistical representation of all tropical forest in terms of biomass and height factors. Our results show that tree H is an important allometric factor that needs to be included in future forest biomass estimates to reduce error in estimates of tropical carbon stocks and emissions due to deforestation.

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Esta dissertação tem por finalidade analisar o fenômeno religioso da conversão ao Islã. Com base em um estudo empírico a dissertação estuda a conversão ao Islã como sendo um processo de assimilação do ethos religioso islâmico empreendido por brasileiros de ascendência não árabe. Numa proposta sociológica o conceito de conversão foi ampliado e articulado junto aos conceitos de identidade e assimilação. Os convertidos entrevistados fazem parte de uma sociedade religiosa muçulmana sunita situada em São Bernardo do Campo na região do grande ABC, São Paulo, organizada em torno de um Centro de Divulgação do Islã para a América Latina (CDIAL), e de uma mesquita que leva o nome de Abu Bakr Assedic. Esta dissertação tenta compreender os antecedentes sócio-religiosos, os motivos da conversão e suas conseqüências. Para tanto, sustentamos ainda que o processo de conversão ao Islã é gradativo e empreendido por um sujeito ativo, que ao interpretar suas próprias experiências, constrói uma identidade particular e diferenciadora do ethos árabe.(AU)

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Esta dissertação tem por finalidade analisar o fenômeno religioso da conversão ao Islã. Com base em um estudo empírico a dissertação estuda a conversão ao Islã como sendo um processo de assimilação do ethos religioso islâmico empreendido por brasileiros de ascendência não árabe. Numa proposta sociológica o conceito de conversão foi ampliado e articulado junto aos conceitos de identidade e assimilação. Os convertidos entrevistados fazem parte de uma sociedade religiosa muçulmana sunita situada em São Bernardo do Campo na região do grande ABC, São Paulo, organizada em torno de um Centro de Divulgação do Islã para a América Latina (CDIAL), e de uma mesquita que leva o nome de Abu Bakr Assedic. Esta dissertação tenta compreender os antecedentes sócio-religiosos, os motivos da conversão e suas conseqüências. Para tanto, sustentamos ainda que o processo de conversão ao Islã é gradativo e empreendido por um sujeito ativo, que ao interpretar suas próprias experiências, constrói uma identidade particular e diferenciadora do ethos árabe.(AU)

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No presente estudo sobre o tema: “Desenvolvimento e Justiça na Missão Integral: Uma análise crítica da presença da Teologia e Práxis da Missão Integral no Solo Paulistano” procura-se analisar a presença do conceito de desenvolvimento e justiça da Missão Integral no solo paulistano. Para tal análise tomou-se como sujeito de pesquisa a Primeira Igreja Batista de São Paulo. Esta dissertação foi desenvolvida no Programa de Pós- Graduação em Ciências da Religião, e pertence à linha de pesquisa “Religião, Sociedade e Cultura”. A metodologia adotada na coleta de dados foi de uma revisão bibliográfica e pesquisa de campo por meio de um roteiro de entrevista. Os questionamentos que nortearam a pesquisa foram: O que é desenvolvimento e Justiça na Missão Integral? É possível notar a presença desses conceitos na práxis e na teologia da Primeira Igreja Batista de São Paulo? Após uma análise da Missão Integral e da Igreja pesquisada, foi possível verificar as aproximações e distanciamentos, assim como hipóteses que justificassem esses fatos. No primeiro capítulo foi apresentada a Missão Integral, sua história, teologia e método. No segundo capítulo os conceitos de desenvolvimento e justiça foram trabalhados. O último capítulo apresentou a Primeira Igreja Batista de São Paulo; buscou estabelecer diálogo entre o conceito de Desenvolvimento e Justiça da Missão Integral e a teologia e práxis da Primeira Igreja Batista de São Paulo.

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A presente dissertação tem por objetivo analisar os aspectos religiosos islâmicos e as implicações das relações de gênero no islam sobre a assistência de saúde às mulheres muçulmanas, e através disto, discutir a importância do conhecimento prévio do islamismo pelos profissionais de saúde para propor uma assistência de saúde congruente a estas mulheres, tendo por referência a Política Nacional de Atenção Integral à Saúde da Mulher. Esta pesquisa tem abordagem qualitativa, com o desenvolvimento de pesquisa de campo e aplicação de um roteiro de perguntas semi-estruturado, com questões relacionadas ao islamismo e à saúde das mulheres. Ao todo, foram entrevistadas dez pessoas, sendo estas: quatro mulheres revertidas ao islam, três mulheres de família muçulmana, dois sheiks e uma assistente social. As entrevistas foram realizadas no Centro de Divulgação do Islam para a América Latina e o Caribe (CDIAL) e na Assembléia Mundial da Juventude Islâmica na América Latina (WAMY).