Did1 Introduction to difference-in-differences design and when to use it I. Introduction Difference-in-differences (DiD) design is a method used in econometrics and social sciences to estimate the causal effect of an intervention or treatment on an outcome variable. The basic idea behind DiD is to compare the change in the outcome variable between a treatment group (i.e. the group exposed to the intervention) and a control group (i.e. the group that is not exposed to.. 2023. 1. 25. 이전 1 다음
