The difference-in-differences method measures the effect of a policy by comparing the changes in an affected group with those in an unaffected group. It examines the differences in both groups before and after the policy was implemented. This approach makes it possible to isolate the impact of the policy under study more precisely. It is particularly useful when randomised trials are not feasible. The double-difference method is widely used to evaluate public reforms or social programmes.
Difference-in-differences
Publications
Évaluation de la réforme de la Residential/local housing tax
Is it possible to reduce geographical inequalities in access to competitive higher education programmes in France?
Reform of the reference daily wage and career progression / professional trajectories
Pre-funding of the Research Tax Credit
The Left Behind: The Local Effects of Deindustrialisation in France
Impact of the 2010 pension reform on the financial sustainability of the unemployment insurance scheme
Rent control: redistributive and economic effects
Skilled immigration: a solution to labour shortages?
The Youth Engagement Contract – young people at risk of dropping out: a quantitative evaluation
The impact of the Youth Engagement Contract on beneficiaries’ career progression / professional trajectories
Engaging ‘invisible’ young people through the Fondation des Apprentis d’Auteuil’s Étincelle scheme
Évaluation de l’impact du « Fais-moi une place » sur les trajectoires de carrière
Evaluation of the ‘1 Young Person, 1 Solution’ Scheme
Évaluation des aides à la décarbonation du plan France Relance
