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Can Weight of Evidence Method Improve Poverty Targeting?

Author

Listed:
  • Be Thanh Duong

    (University of Hohenheim
    Kien Giang University)

  • Orkhan Sariyev

    (University of Hohenheim)

  • Manfred Zeller

    (University of Hohenheim)

Abstract

This study explores the potential of adapting a WOE (Logit) method, a combination of techniques such as weight of evidence, information value, logit regression, and a score-scaling approach based on doubling the odds, for poverty targeting. To verify the effectiveness and accuracy of this method, the study applies it to develop targeting tools based on international and Vietnamese national poverty lines, and compares their accuracy to commonly used poverty-targeting tools such as the Simple Poverty Scorecard, Proxy Means Test, and Poverty Assessment Tool. The study uses coverage rate as a criterion to compare the accuracy of targeting tools in identifying the poor at household and individual levels. The results indicate that targeting tools constructed using the WOE (Logit) method outperform those developed using other methods. Depending on the poverty line, this method improves poverty identification accuracy by 1.9–5.9 percentage points for households and 1.5–3.3 percentage points for individuals compared to other methods. Therefore, this study contributes an additional method for constructing targeting tools with high accuracy alongside existing approaches.

Suggested Citation

  • Be Thanh Duong & Orkhan Sariyev & Manfred Zeller, 2025. "Can Weight of Evidence Method Improve Poverty Targeting?," Social Indicators Research: An International and Interdisciplinary Journal for Quality-of-Life Measurement, Springer, vol. 178(1), pages 305-333, May.
    • Handle: RePEc:spr:soinre:v:178:y:2025:i:1:d:10.1007_s11205-025-03576-z
    DOI: 10.1007/s11205-025-03576-z
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