“…As noted in the introduction, several experts advocate institutional changes in the AMR regime, such as the inclusion of legally binding elements (Hoffman et al, 2019a;Pitchforth et al, 2022;Rochford et al, 2018;Rogers Van Katwyk et al, 2020). In contrast to studies comparing the effectiveness of hard and soft international agreements while controlling for other factors (Böhmelt & Pilster, 2010;Köppel & Sprinz, 2019;Parente, 2022;Tveit & Tørstad, 2023;Zangl, 2008), we cannot empirically assess the counterfactual effectiveness of a legalized AMR regime. However, we can note some implications of our theory and findings for institutional reform.…”