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4 Rating Migrations
4.1 Rating Transition Probabilities
4.2 Analyzing the Time-Stability of Transition Probabilities
4.2.1 Aggregation over Periods
4.2.2 Are the Transition Probabilities Stationary?
4.2.3 Computation and Quantlets
4.2.4 Examples with Graphical Presentation
4.3 Multi-Period Transitions
Bibliography

 
  electronic books