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Assessment of a Credit Value atRisk for Corporate Credits
KTH, School of Engineering Sciences (SCI), Mathematics (Dept.), Mathematical Statistics.
2013 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

In this thesis I describe the essential steps of developing a credit rating system. This comprises the credit scoring process that assigns a credit score to each credit, the forming of rating classes by the k-means algorithm and the assignment of a probability of default (PD) for the rating classes. The main focus is on the PD estimation for which two approaches are presented. The first and simple approach in form of a calibration curve assumes independence of the defaults of different corporate credits. The second approach with mixture models is more realistic as it takes default dependence into account. With these models we can use an estimate of a country’s GDP to calculate an estimate for the Value-at-Risk of some credit portfolio.

Place, publisher, year, edition, pages
2013. , 68 p.
Series
TRITA-MAT-E, 2013:34
Keyword [en]
Bernoulli Mixture Models
National Category
Probability Theory and Statistics
Identifiers
URN: urn:nbn:se:kth:diva-124146OAI: oai:DiVA.org:kth-124146DiVA: diva2:633172
External cooperation
Debeka Bausparkasse AG
Subject / course
Mathematical Statistics
Educational program
Master of Science - Mathematics
Uppsok
Physics, Chemistry, Mathematics
Supervisors
Examiners
Available from: 2013-06-26 Created: 2013-06-26 Last updated: 2013-06-26Bibliographically approved

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CiteExportLink to record
Permanent link

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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf