TRESHOLDS FOR RATINGS' FORECAST DEFAULT PROBABILITIES: SOME QUANTITATIVE EVIDENCES

التفاصيل البيبلوغرافية
العنوان: TRESHOLDS FOR RATINGS' FORECAST DEFAULT PROBABILITIES: SOME QUANTITATIVE EVIDENCES
المؤلفون: DE LISA, RICCARDO, ZEDDA, STEFANO, MARCHESI M
المساهمون: ANGELA C., CARRILLO MENENDEZ S., MICOCCI M., NAVARRO ARRIBAS E., OTTAVIANI R., PRESSACCO F., DE LISA, Riccardo, Marchesi, M, Zedda, Stefano
بيانات النشر: MILANO
The McGraw-Hill Companies
سنة النشر: 2009
المجموعة: Università degli Studi di Cagliari: UNICA IRIS
الوصف: Basel Committee for Banking Supervision has proposed a procedure to “map” the ratings of different rating agencies into the risk weights that determine credit institutions’ capital requirements. Some observers notice that this procedure seems to lead to very broad ranges, and worry that this could prevent the prompt detection of on-going weaknesses in the rat-ing assignment standards followed by some rating agencies. This paper aims at providing an evaluation of whether and to what extent this worry is justified presenting an approach based on the binomial distribution to estimate rating thresholds across the various rating classes. On the basis of the theoretical characteristics of the binomial distribution, it is in fact possible to test the dis-criminatory power of the mapping methodology recommended by Basel II to supervisors when associating risk weights to rating agencies ratings in the Standardized Approach.
نوع الوثيقة: book part
اللغة: unknown
Relation: info:eu-repo/semantics/altIdentifier/isbn/978-88-386-6061-0; ispartofbook:New Frontiers in insurance and bank risk management; firstpage:149; lastpage:157; numberofpages:9; http://hdl.handle.net/11584/95644
الاتاحة: http://hdl.handle.net/11584/95644
رقم الانضمام: edsbas.95A0AC4E
قاعدة البيانات: BASE