MBA and dichotomous state models

Every now and then one comes across writing that one can only marvel at its complexity. This is one example that was handed to me by a fellow PGSEM student, and is part of a reading given in the Financial Statements Analysis elective.

"However, since estimation of a dichotomous state model that ignores the state-based sample procedures yields asymptotically biased coefficient estimates, I use weighted exogenous sample maximum likelihood probit (WESML)."

This excerpt is from page 8 from 'The Detection of Earnings Manipulation'.