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Beyond Experiments in Development EconomicsLocal Economy-wide Impact Evaluation$
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J. Edward Taylor and Mateusz J. Filipski

Print publication date: 2014

Print ISBN-13: 9780198707875

Published to Oxford Scholarship Online: September 2014

DOI: 10.1093/acprof:oso/9780198707875.001.0001

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Data for LEWIE

Data for LEWIE

(p.85) 4 Data for LEWIE
Beyond Experiments in Development Economics

J. Edward Taylor

Mateusz J. Filipski

Oxford University Press

This chapter shows how to build a household SAM from primary and secondary data, then how to nest SAMs of heterogeneous households or household groups into a meta-SAM for the project or study area. Most LEWIE models are parameterized and initialized from meta-SAMs. The newest LEWIE models are parameterized econometrically, using micro-survey data and estimation techniques discussed here. The chapter also covers the design of surveys and questionnaires, such as how to modify randomized control trial surveys for LEWIE. It discusses some challenges in calibrating LEWIE models from existing data, such as LSMS survey data, and hybrid models, in which data are culled from more than one source. Finally, strategies are presented to design LEWIE simulations when the direct impacts of a program, policy, or other event are not known or cannot be ascertained reliably using randomized control trials or other experimental methods.

Keywords:   household surveys, survey design, randomized control trials, household data, econometric estimation, experiment design, SAM, social accounting matrix, model calibration

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