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Manuela Coromaldi, Alessandra Garbero and Marco Letta
''Recovering the counterfactual as part of ex-ante impact assessments: an application to the PASIDP – II project in Ethiopia''
( 2019, Vol. 39 No.3 )
Real-world ex-ante impact assessments are far from the ideal experimental design, where the eligible population is supposed to be randomly assigned to treatment and control groups. Often, many surveys in developing contexts do not even collect data from a comparison group. We propose a methodology that recovers the counterfactual for ex-ante impact assessments of policy interventions under the conditions of distance decay in the exposure to continuous treatments and lack of control groups. We test this approach on data from a large-scale irrigation project in Ethiopia.
Keywords: counterfactual building; impact assessment; generalized propensity score; distance decay
JEL: C5 - Econometric Modeling: General
H4 - Publicly Provided Goods: General
Manuscript Received : May 27 2019 Manuscript Accepted : Aug 11 2019

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