(Still not finished with year end work at work ...) Recently finished Prof. Caplan's fine "Stigler-Becker vs Myers-Briggs" paper.
I believe strongly in MBTI (MB Type Indicator) (I'm an NTP, E/I). I like the Five Factor Model addition, but not name, of "Neurotic", and don't like the names of the other 2 FFM that are different. However, the "Conscientiousness" category (more J, not P) of personality traits might be at work here -- other things seemingly equal, low scorers might be worse credit risks AND have higher losses. I strongly favor freedom (oppose restrictions) on categories insurance companies can use, ESPECIALLY those somewhat behaviourist: it's not your fault if you're a man instead of a woman under 25 -- it IS your fault that you didn't pay your credit card. Or missed a payment and paid later. etc. Tom Grey