To assess the impact of tax-benefit policy changes on income distribution over time, we suggest a methodology based on counterfactual simulations. We start by decomposing changes in inequality/poverty indices into three contributions: reforms of the tax-benefit structure (rules, rates, etc.),...

Plan Sésame (PS) was launched in 2006 to provide free access to health services to Senegalese citizens aged 60 and over. As in many countries, this user fee exemption is marred by inequitable implementation. This study seeks to identify underlying causal mechanisms to explain how and why some...