英国财政研究所（IFS）：从差异中学习说服的效果（英文版）

The persuasion rate is a key parameter for measuring the causal effect of a directional message on influencing the recipient’s behavior. Its identification has relied on exogenous treatment or the availability of credible instruments, but the requirements are not always satisfied in observational studies. Therefore, we develop a novel econometric framework for the average persuasion rate on the treated and other related parameters by using the difference-in-differences approach. The average t