Notwithstanding the recent reforms, there is a consensus amongst international organizations that in Portugal both Social Security and the civil servants' pension scheme (the CGA) continue to be financially unsustainable over the long term. This paper focuses on Social Security (the private...

A new class of linear discrimination rules, designed for problems with many correlated variables, is proposed. This proposal tries to incorporate the most important patterns revealed by the empirical correlations and accurately approximate the optimal Bayes rule as the number of variables...