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Revisiting the effect of food aid on conflict : a methodological caution (English)

A popular identification strategy in non-experimental panel data uses instrumental variables constructed by interacting exogenous but potentially spurious time series or spatial variables with endogenous exposure variables to generate identifying variation through assumptions like those of differences-in-differences estimators. Revisiting a celebrated study linking food aid and conflict shows that this strategy is susceptible to bias arising from...
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Christian,Paul J.; Barrett,Christopher B..

Revisiting the effect of food aid on conflict : a methodological caution (English). Policy Research working paper|no. WPS 8171 Washington, D.C. : World Bank Group. http://documents.worldbank.org/curated/en/723981503518830111

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