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The Living Standards Measurement Study-Integrated Surveys on Agriculture project collects agricultural and livelihood data in seven countries in Sub-Saharan Africa. In order to maintain representativeness as much as possible over multiple rounds of data collection, a sub-sample of households are selected to have members that have left the household tracked and interviewed in their new location with their new household members. Since the sub-sampling occurs at the level of the household but tracking occurs at the level of the individual, a number of issues arise with the correct calculation for the sub-sampling and attrition corrections. This paper is based on the panel weight calculations for the initial rounds of the Integrated Surveys on Agriculture surveys in Uganda and Tanzania, and describes the methodology used for calculating the weight components related to sub-sampling, tracking, and attrition, as well as the criteria used for trimming and post-stratification. It also addresses complications resulting from members previously classified as having attrited from the sample returning in later rounds.
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After almost two decades of poverty maps produced by the World Bank and multiple advances in the literature, this paper presents a methodological update to the World Bank's toolkit for small area estimation. The paper reviews the computational procedures of the current methods used by the World Bank: the traditional approach by Elbers, Lanjouw and Lanjouw (2003) and the Empirical Best/Bayes (EB) addition introduced by Van der Weide (2014). The addition extends the EB procedure of Molina and Rao (2010) by considering heteroscedasticity and includes survey weights, but uses a different bootstrap approach, here referred to as clustered bootstrap. Simulation experiments comparing these methods to the original EB approach of Molina and Rao (2010) provide empirical evidence of the shortcomings of the clustered bootstrap approach, which yields biased point estimates. The main contributions of this paper are then two: 1) to adapt the original Monte Carlo simulation procedure of Molina and Rao (2010) for the approximation of the extended EB estimators that include heteroscedasticity and survey weights as in Van der Weide (2014); and 2) to adapt the parametric bootstrap approach for mean squared error (MSE) estimation considered by Molina and Rao (2010), and proposed originally by Gonzalez-Manteiga and others (2008), to these extended EB estimators. Simulation experiments illustrate that the revised Monte Carlo simulation method yields estimators that are considerably less biased and more efficient in terms of MSE than those obtained from the clustered bootstrap approach, and that the parametric bootstrap MSE estimators are in line with the true MSEs under realistic scenarios.
Elbers, Lanjouw And Lanjouw --- ELL --- Empirical Best --- Heteroscedasticity --- Inequality --- Mean Squared Error Estimation --- Monte Carlo Simulation --- Parametric Bootstrap --- Poverty Mapping --- Poverty Reduction --- Small Area Estimate --- Survey Weights
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Population-based survey experiments have become an invaluable tool for social scientists struggling to generalize laboratory-based results, and for survey researchers besieged by uncertainties about causality. Thanks to technological advances in recent years, experiments can now be administered to random samples of the population to which a theory applies. Yet until now, there was no self-contained resource for social scientists seeking a concise and accessible overview of this methodology, its strengths and weaknesses, and the unique challenges it poses for implementation and analysis. Drawing on examples from across the social sciences, this book covers everything you need to know to plan, implement, and analyze the results of population-based survey experiments. But it is more than just a "how to" manual. This lively book challenges conventional wisdom about internal and external validity, showing why strong causal claims need not come at the expense of external validity, and how it is now possible to execute experiments remotely using large-scale population samples. Designed for social scientists across the disciplines, Population-Based Survey Experiments provides the first complete introduction to this methodology. Offers the most comprehensive treatment of the subject Features a wealth of examples and practical advice Reexamines issues of internal and external validity Can be used in conjunction with downloadable data from ExperimentCentral.org for design and analysis exercises in the classroom
Social surveys --- Surveys --- Government surveys --- Mathematical geography --- Methodology. --- Methodology --- Institutional Review Board. --- Internet. --- analysis stage. --- anchoring. --- card sort techniques. --- cause. --- complex theories. --- covariates. --- direct treatment. --- direct treatments. --- economic games. --- effect. --- ethics. --- experimentalists. --- external validity. --- factorial designs. --- false feedback. --- game-based treatments. --- gaming. --- generalizability. --- human subjects. --- hybrid methodology. --- hypotheses. --- hypothetical people. --- independent variable. --- indirect treatments. --- inferential process. --- internal validity. --- item count technique. --- measurement. --- observational methods. --- observational studies. --- online experiments. --- particularistic research. --- population average. --- population-based experiment. --- population-based experiments. --- population-based survey experiments. --- population-based survey. --- random population samples. --- random samples. --- randomization checks. --- real world settings. --- realism. --- research design. --- research. --- researchers. --- social science laboratories. --- social science theories. --- split-ballot approach. --- survey experiments. --- survey weights. --- surveys. --- traditional experiments. --- traditional surveys. --- vignette treatments. --- war stories. --- Qualitative methods in social research --- SURVEYS -- 343.901 --- SOCIAL SURVEYS -- 343.901 --- SURVEYS -- 370.40 --- SOCIAL SURVEYS -- 370.40 --- SOCIAL SURVEYS -- 159.99
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