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What does variation in survey design reveal about the nature of measurement errors in household consumption ?
 
Author:Gibson, John; Beegle, Kathleen; De Weerdt, Joachim; Friedman, Jed; Collection Title:Policy Research working paper ; no. WPS 6372
Country:Tanzania; Date Stored:2013/02/21
Document Date:2013/02/01Document Type:Policy Research Working Paper
SubTopics:Economic Theory & Research; Food & Beverage Industry; Inequality; Consumption; Statistical & Mathematical SciencesLanguage:English
Major Sector:Energy and mining; Health and other social services; Finance; TransportationRel. Proj ID:1W-Lsms Iv: Research For Improving Survey Data -- -- P102013;
Region:AfricaReport Number:WPS6372
Sub Sectors:Microfinance; Other social services; General finance sector; General energy sector; General transportation sectorTF No/Name:TF057207-KCP:; TF092149-PANEL HOUSEHOLD SURVEYS AND AGRICULTURE IN TANZANI; TF099153-Building Capacity for Poverty Statistics in Tanzania
Volume No:1 of 1  

Summary: This paper uses data from eight different consumption questionnaires randomly assigned to 4,000 households in Tanzania to obtain evidence on the nature of measurement errors in estimates of household consumption. While there are no validation data, the design of one questionnaire and the resources put into its implementation make it likely to be substantially more accurate than the others. Comparing regressions using data from this benchmark design with results from the other questionnaires shows that errors have a negative correlation with the true value of consumption, creating a non-classical measurement error problem for which conventional statistical corrections may be ineffective.

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