Appraising Credit Ratings : Does the CAP Fit Better than the ROC? /

ROC and CAP analysis are alternative methods for evaluating a wide range of diagnostic systems, including assessments of credit risk. ROC analysis is widely used in many fields, but in finance CAP analysis is more common. We compare the two methods, using as an illustration the ability of the OECD&#...

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Manylion Llyfryddiaeth
Prif Awdur: Irwin, R. John
Awduron Eraill: Irwin, Timothy
Fformat: Cylchgrawn
Iaith:English
Cyhoeddwyd: Washington, D.C. : International Monetary Fund, 2012.
Cyfres:IMF Working Papers; Working Paper ; No. 2012/122
Pynciau:
Mynediad Ar-lein:Full text available on IMF
Disgrifiad
Crynodeb:ROC and CAP analysis are alternative methods for evaluating a wide range of diagnostic systems, including assessments of credit risk. ROC analysis is widely used in many fields, but in finance CAP analysis is more common. We compare the two methods, using as an illustration the ability of the OECD's country risk ratings to predict whether a country will have a program with the IMF (an indicator of financial distress). ROC and CAP analyses both have the advantage of generating measures of accuracy that are independent of the choice of diagnostic threshold, such as risk rating. ROC analysis has other beneficial features, including theories for fitting models to data and for setting the optimal threshold, that we show could also be incorporated into CAP analysis. But the natural interpretation of the ROC measure of accuracy and the independence of ROC curves from the probability of default are advantages unavailable to CAP analysis.
Disgrifiad o'r Eitem:<strong>Off-Campus Access:</strong> No User ID or Password Required
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Disgrifiad Corfforoll:1 online resource (24 pages)
Fformat:Mode of access: Internet
ISSN:1018-5941
Mynediad:Electronic access restricted to authorized BRAC University faculty, staff and students