vaccination, recovery or a recent negative test, and have required individuals to show certificates to access shops, restaurants … ethical concerns, the incentive effects of COVID certificates on vaccine uptake, health outcomes and the economy has not yet …

This study investigates the effectiveness of dynamic norm nudges in promoting second-dose HPV vaccinations among … from Bogota's Secretariat of Health in a field experiment, we measure the impact of various norm nudges, including trending …, qualitative, and quantitative dynamic norms, on actual vaccination rates. Contrary to our hypothesis, dynamic norms alone fail to …

publicly-managed vaccination campaigns. We fill this gap by studying the case of Chile, which offers a rare combination of a … high-stakes election, voluntary voting, and a vaccination process halfway implemented by election day. Crucially, the roll … find that higher vaccination rates boost political participation and empower challengers irrespective of their party …