ratio a bank would experience if it were fully efficient at credit-risk evaluation and loan monitoring, represents the …, a minimum ratio that represents best-practice lending given the volume and composition of a bank's loans, the average … concentration; and, second, a ratio, the difference between the bank's observed ratio of nonperforming loans and the best …

: first, a minimum ratio that represents best-practice lending given the volume and composition of a bank's loans, the average … concentration; second, a ratio, the difference between the bank's observed ratio of nonperforming loans, adjusted for statistical … noise, and the best-practice minimum ratio, that represents the bank's proficiency at loan making; third, a statistical …