%0 Unpublished work %T Difference-in-differences %+ Observatoire sociologique du changement (Sciences Po, CNRS) (OSC) %+ Centre National de la Recherche Scientifique (CNRS) %+ Laboratoire interdisciplinaire d'évaluation des politiques publiques (Sciences Po) (LIEPP) %+ Center for Economic Policy Research (CEPR) %+ Forschungsinstitut zur Zukunft der Arbeit - Institute of Labor Economics (IZA) %+ Paris School of Economics (PSE) %+ Centre d'économie de la Sorbonne (CES) %A Fougère, Denis %A Jacquemet, Nicolas %J LIEPP Methods Brief / Fiches méthodologiques du LIEPP %3 LIEPP Methods Brief n°10 %I Laboratoire interdisciplinaire des politiques publiques (LIEPP, Sciences Po) %8 2023-05-10 %D 2023 %K Quantitative methods %K Quasi-experimental methods %K difference-in-differences %K difference-in-difference-in-differences %K longitudinal data %K parallel trends %K Entropy balancing %K synthetic/artificial control group %Z Humanities and Social Sciences %Z Humanities and Social Sciences/Political scienceOther publications %X The difference-in-differences method is a quantitative, quasi-experimental method to assess the impact of an intervention by setting up comparison groups and measuring the change in an outcome between a pre- and a post-intervention period when only one of the two groups has access to the intervention. This method is very useful for ex-post impact evaluation. %G English %2 https://hal.science/hal-04102943/document %2 https://hal.science/hal-04102943/file/METHOD-10-Fougere-Jacquemet.pdf %L hal-04102943 %U https://hal.science/hal-04102943 %~ SHS %~ UNIV-PARIS1 %~ ENS-PARIS %~ SCIENCESPO %~ ENPC %~ CNRS %~ EHESS %~ CES %~ PARISTECH %~ AO-SCIENCEPOLITIQUE %~ PSL %~ INRAE %~ ENS-PSL %~ ANR %~ LIEPP %~ SCPO_OA %~ CRIS %~ LIEPP-METHOD