Recalibrating scorecards

Many credit scoring systems depend on scorecards which order applicants by credit risk. However the scorecards may also have other properties with cer tain scores reflecting certain good:bad odds or differences in scores havin g the same property throughout the score range. Other properties like posit ivity of attribute points may be required for palatability or internal mark eting reasons. The paper outlines the results of a small survey of what pro perties scorecard builders require of their scorecards. It then discusses h ow these properties can be obtained and describes a linear programming form ulation which recalibrates scorecards so as to produce the best approximate scorecard with the properties required.