Prehn, Soren; Brummer, Bernhard - Gesellschaft für Wirtschafts- und Sozialwissenschaften … - 2011
misspecifications and beyond that robust against unobserved heterogeneity. Another alternative is a log-skew-normal Two-Part Model (G2PM …) which generalises the standard lognormal Two-Part Model (2PM). It is insofar advantageous as it adjusts for (negative …