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The World Bank and leading donors have emphasized the importance of evidence‐based policy making in addressing entrenched poverty. Adoption of Poverty Reduction Strategy Papers has also required establishing and updating poverty baselines, typically through Living Standards Measurement Surveys. Although the conceptual basis of these surveys has been questioned, little attention has been paid to whether frequent revisions to the longitudinal record have undermined their value. This article argues that changes to the poverty record have been sufficiently frequent and often sufficiently large to compromise the creation of a sound longitudinal poverty record. The lack of transparency also weakens national debate and ownership and undermines the construction of evidence‐based policy. 相似文献
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Abstract With the growth in interest in collective biography as a historical technique, many predominantly qualitative historians find themselves faced with large amounts of information. These data, collected from a variety of sources, are often highly irregular, making statistical analysis extremely problematic. Current practice is to ignore these problems and proceed with quantitative analysis suitable only for much more regular data. It is argued that a more satisfactory approach is to ascertain and directly confront the difficulties of analyzing such information. The three central problems are identified as missing data, systematic bias, and the lack of a representative sample. Using a practical example, the author explores the relationship between gender, the family, and political socialization within the Communist Party of Great Britain and shows how each of the issues can be dealt with in turn. The author first distinguishes truly missing data from “negative information,” which commonly appears to be missing in historical sources. He then stratifies the data to remove systematic biases relating to the issue at hand. Finally, he divides the sample into different populations, on the basis of the sources from which individuals are known, and compares the results obtained to examine whether his conclusions appear to depend on quirks of populations contained in the sources. These ideas open a new range of sources to quantitative analysis and raise the possibility of allowing new types of evidence to count in historical inquiry. 相似文献
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