We show that the OLS and fixed‐effects (FE) estimators of the popular difference-in-differences model may deviate when there is time varying panel non-response. If such non-response does not affect the common-trend assumption, then OLS and FE are consistent, but OLS is more precise. However,...

Most empirical studies indicate that becoming a mother is an augmenting factor for the perpetration of intimate partner violence (IPV). Using rich population-wide hospital records data from Sweden, we conduct a stacked DiD analysis comparing the paths of women two years before and after the...