vaccination, recovery or a recent negative test, and have required individuals to show certificates to access shops, restaurants …

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 … influence second-dose HPV vaccination rates for these trendsetters. However, the study reveals a 5.22 percent increase …

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 …

The German health care reform of 1997 provides a natural experiment for evaluating the price sensitivity of demand for …, certain groups of people were exempted from the increase, providing a natural control group against which the changed demand …

whether personal reminders can increase demand for vaccination. A field experiment was conducted in rural Guatemala in which … probability of vaccination completion by 2.2 percentage points among all children in treatment communities. Moreover, for children … date, the probability of vaccination completion increased by 4.9 percentage points. The cost of an additional child with …