I will discuss my experience with Stata's ml method d2 when coding and estimator for a multi-state Markov transition model with unobserved heterogeneity. When analytical derivatives are available, programming a "d2" estimator is in principle straightforward and offers potentially huge rewards in...

At the Research Data Centre of the BA at the IAB, researchers can send in Stata programs to be processed there with the log files sent back to them after a disclosure limitation review. This method of data access is called remote data access and the reason we do this is data confidentiality....