childpen - Identification and Estimation of Child Penalties

Estimators from Leventer (2025), "Identification of Child Penalties" <doi:10.48550/arXiv.2602.07486>: within-gender difference-in-differences, triple differences, the conventional normalized estimator with a bias-bounding exercise, the effect of parenthood on the gender earnings ratio under normalized and proportional triple differences, the accounting of the gender gap, and aggregation across treatment groups, with influence-function standard errors clustered by person.