Nutrition-related health taxes: setting expectations.

Abstract

The COVID-19 pandemic and the availability of effective vaccines have highlighted the need for robust evaluations of population health interventions, from vaccines to interventions for obesity. The robustness of these evaluations, and the identification of effective interventions, often rely on evidence from randomised controlled trials (RCTs) and, more so, on comparative evidence across interventions whereby effect sizes can be pooled. Excessive reliance on RCTs as the guidance for public health interventions has been previously criticised, yet the field of economics recently pointed to experimental evidence to guide policy and development...