CAS Exam 8 study plan
CAS Exam 8 · Give each week a clear focus.
8 weeks · About 7 hours per week
Advanced Ratemaking
Map the full Advanced Ratemaking syllabus into a one-page topic tree, tagging each subtopic by expected exam weight and your current confidence level
Define and write out from memory the core ratemaking identity linking expected loss cost, expense loading, profit/contingency provision, and permissible loss ratio, then verify against your study material
Distinguish loss costs from final rates and explain, in writing, why manual rates must be adjusted for territory, class, and deductible before use
Build a formula sheet skeleton organized by subtopic so later weeks append to it rather than restart
Your checkpoint
A one-page topic tree plus a versioned formula sheet with at least 15 entries, each cross-referenced to a syllabus learning objective
Advanced Ratemaking
Derive the loss ratio, pure premium, and loss cost methods for trended and developed experience, and state the assumptions each method requires
Compute on-level premium factors for rate changes and explain how parallelogram vs. policy-year methods change the on-level factor
Practice converting incurred losses to an ultimate basis using loss development factors, and identify which development selections are judgmental
Work 10+ calculation problems end to end without looking at solutions, then diagnose every error by root cause
Your checkpoint
A worked problem set of at least 10 fully solved ratemaking calculations with an error log classifying mistakes as conceptual, arithmetic, or formula-recall
Advanced Ratemaking
Explain credibility theory's role in ratemaking and derive the limited-fluctuation credibility standard from its variance argument
Contrast classical credibility with Bühlmann and Bühlmann-Straub models, stating what each estimates and when each is preferred
Compute credibility-weighted estimates by hand for at least three scenarios with differing exposure volumes
Interpret the complement of credibility and justify a defensible complement selection in writing
Your checkpoint
A credibility comparison table covering classical, Bühlmann, and Bühlmann-Straub, plus three hand-computed credibility-weighted rate indications
Advanced Ratemaking
Derive trend factors for frequency and severity separately, and explain why combining them into a single pure premium trend can mislead
Select trend periods correctly under different effective-date and rate-change assumptions, and compute trended loss costs both ways
Explain how benefit and limit changes, tort reform, and case reserve strengthening distort historical losses, and adjust for each
Assemble a complete indicated rate change from raw experience through trend, development, credibility, and expense loading
Your checkpoint
One end-to-end indicated rate change memo with every intermediate step shown, defensible selections annotated, and a stated final indication
Advanced Ratemaking
Explain increased-limits factors and deductible credits, and derive each from loss elimination ratios
Compute loss elimination ratios for deductible changes and interpret how the ratio behaves as the deductible grows
Distinguish excess loss provisions from increased-limits factors and explain when each applies
Apply classification ratemaking logic to explain how territory and class relativities are balanced to a manual base rate
Your checkpoint
A deductible and limit adjustment worksheet with at least eight computed factors and a written justification for each selection
Advanced Ratemaking
Explain experience rating, schedule rating, and retrospective rating, and state which plans suit which account sizes
Compute a basic experience modification factor and interpret each component's effect on the result
Work retrospective rating premium calculations including the max and min premium constraints
Identify the ratemaking treatment of individual risk rating plans within the overall rate indication
Your checkpoint
A one-page decision guide mapping risk characteristics to the appropriate individual risk rating plan, backed by six solved numeric examples
Advanced Ratemaking
Complete two full-length timed practice exams under exam conditions and record per-question time spent
Classify every missed question by subtopic and by failure mode: concept gap, formula recall, misread, or time pressure
Re-derive from scratch the formulas you missed, then re-solve those questions without notes
Rank remaining weak subtopics by expected point value and build a prioritized repair list
Your checkpoint
A scored practice-exam report with per-subtopic accuracy percentages and a ranked repair list of no more than 10 items
Advanced Ratemaking
Close every item on the repair list, re-solving each associated problem type until correct twice in a row
Compress the formula sheet to a single page of highest-yield relationships and memorize it cold
Rehearse written-answer structure for calculation questions: state assumptions, show steps, state the answer with units
Run one final timed half-exam in the last three days and taper rather than learn new material
Your checkpoint
A finalized one-page formula sheet plus a repair-list closure log showing two consecutive correct solves for every previously missed problem type
Milestones
Week 2: Solve three trended and developed loss cost problems cold, with no formula sheet, at 90% or better accuracy
Week 4: Produce a complete indicated rate change from raw data to final indication in under 60 minutes with all steps defensible
Week 6: Correctly select and compute the appropriate individual risk rating plan for six of eight varied account scenarios
Week 7: Score at least 70% on a full timed practice exam, with no single subtopic below 50% accuracy
Week 8: Recall the one-page formula sheet from blank paper with no omissions and score 80% or better on the final half-exam