On the Utilization of Direct as Well as Collateral Information in the Problem of Statistical Estimation [Discussion]

The author is to be congratulated not only on a most interesting and stimulating paper on credibility procedures in casualty actuarial work but also on an important contribution to the subject of inverse probability. Inverse probability has been considered in relation to actuarial work on a number of occasions and when Mr. Perks presented a paper to the Institute of Actuaries on the subject a few years ago a most interesting discussion resulted. My remarks, however, will be limited to the discussion of credibility procedures.