Direct Data Manipulation for Local Decision Analysis as Applied to the Problem of Arsenic in Drinking Water from Tube Wells in Bangladesh

Andrew Gelman, Matilde Trevisani, Hao Lu and Alexander Van Geen

Risk Analysis, 2004, vol. 24, issue 6, 1597-1612

Abstract: A wide variety of tools are available, both parametric and nonparametric, for analyzing spatial data. However, it is not always clear how to translate statistical inferences into decision recommendations. This article explores the possibilities of estimating the effects of decision options using very direct manipulation of data, bypassing formal statistical analysis. We illustrate with the application that motivated this research, a study of arsenic in drinking water in nearly 5,000 wells in a small area in rural Bangladesh. We estimate the potential benefits of two possible remedial actions: (1) recommendations that people switch to nearby wells with lower arsenic levels; and (2) drilling new community wells. We use simple nonparametric clustering methods and estimate uncertainties using cross‐validation.

Date: 2004
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Persistent link: https://EconPapers.repec.org/RePEc:wly:riskan:v:24:y:2004:i:6:p:1597-1612

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