ACT 499 · Year 4 · Semester 2 · 4 credits · Integration & Practice

Capstone Case Study: The Full Actuarial Engagement

From raw Schedule P loss triangles to defending your rate filing before the insurance commissioner: the complete end-to-end actuarial engagement.

Full practice exam · 30 Q · 120 min

Season 1 · 8 episodes

The Mid-Continent Docket

A senior consulting actuary takes the helm of a troubled Midwestern workers' compensation insurer, navigating statutory accounting, stochastic reserves, rate filings, and regulatory cross-examination to rescue the company from insolvency before the insurance commissioner intervenes.

Protagonist · Maya Lin, FCAS and Lead Actuary at Apex Actuarial Advisory, known for unflinching technical rigour and calm under regulatory pressure.

Setting · Apex's Chicago consulting office, Mid-Continent Mutual's corporate headquarters in Des Moines, and the state insurance department hearing chamber.

Stakes · Mid-Continent Mutual faces a statutory surplus deficit and a pending regulatory audit; an inaccurate reserve estimate or an unsupportable rate filing will trigger mandatory administrative supervision and freeze 40,000 workers' policies.

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Episodes

Season finale: Maya defends a fully integrated reserving and rate filing package before the state insurance commissioner, reconciling Mack reserve uncertainty, investment yield discounting, TVaR capital allocation, and class relativity shifts into a unanimous regulatory approval that preserves the insurer's solvency.

From the lecturer: Welcome to the capstone of your actuarial degree. In ACT 499, you transition from solving isolated textbook problems to serving as the appointed consulting actuary for a mid-sized US Workers' Compensation insurer, analyzing real industry data from the CAS Loss Reserve Database. As you watch these films, keep an active three-part workspace open: a dual-track calculation workbook in Excel and Python/R, an Actuarial Memo Journal for professional documentation, and your standard formula sheet. Do not watch passively. When we encounter triangle diagnostics, on-level premium distributions, or credibility weightings, pause the video and execute the calculation yourself before the reveal. This course synthesizes the core syllabi of CAS Exam 5 (Basic Reserving and Ratemaking), CAS Exam 7 (Estimation of Policy Liabilities), and SOA FAM, while directly applying Actuarial Standards of Practice (ASOPs 41, 43, and 56). By the final episode, you will not only calculate Mack standard errors, pure premium indications, and TVaR risk loads, but you will also possess the professional judgment required to defend them under rigorous regulatory cross-examination.

Cold open

At 7:15 on a damp Monday morning, Maya Lin is summoned to the executive boardroom of Mid-Continent Mutual. On the projector is Schedule P Part 1, glowing red: statutory surplus has dropped twelve percent in four quarters, medical cost trends are accelerating, and the state insurance department has issued a formal demand for an independent actuarial audit of the entire workers' compensation book before the upcoming quarterly filing.

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Transcript

Structure a commercial Workers' Compensation actuarial engagement following professional standards (ASOP 23, 41, and 43).
Audit and reconcile NAIC Schedule P annual statement data (Parts 1 through 4) across calendar and accident years.
Identify key data anomalies, long-tail structural features, and accounting distinctions between SAP and GAAP prior to modeling.