Estimating Poverty Rates in Target Populations

• Tác giả: Alexis Diamond
• Ngôn ngữ: eng
• Ký hiệu phân loại: 741.59 Collections
• Thông tin xuất bản: World Bank, Washington, DC, 2016
• Bộ sưu tập: Tài liệu truy cập mở
• ID: 291876
• Chủ đề: 1. headcount poverty rate; 2. PPI; 3. simple poverty scorecard

Tóm tắt

The performance of the Simple Poverty Scorecard is compared against the performance of established regression-based estimators. All estimates are benchmarked against observed poverty status based on household expenditure (or income) data from household socioeconomic surveys that span nearly a decade and are representative of subnational populations. When the models all adopt the same "one-size-fits-all" training approach, there is no meaningful difference in performance and the Simple Poverty Scorecard is as good as any of the regression-based estimators. The findings change, however, when the regression-based estimators are "trained" on "training sets" that more closely resemble potential subpopulation test sets. In this case, regression-based models outperform the nationally calculated Simple Poverty Scorecard in terms of bias and variance. These findings highlight the fundamental trade-off between simplicity of use and accuracy.