1. Twopm: Two-part models;STATA Journal,2015
2. Modeling risk using generalized linear models;Journal of Health Economics,1999
3. Bivariate alternative to the univariate Tobit model;Journal of Econometrics,1987
4. An analysis of transformations;Journal of the Royal Statistical Society B,1964
5. Log with zeros? Some problems and solutions;Quarterly Journal of Economics,2023