Exam 5 · Principles, Implementation & Regulation · Free Lesson

Test a pricing situation against the four principles in the CAS Statement of Principles Regarding Property and Casualty Insurance Ratemaking.

Free CAS Exam 5 (Basic Ratemaking and Reserving) lesson in Principles, Implementation & Regulation. 19 min read, ~2,793 words.

An actuary hands you a filed rate built from last year's raw losses, no profit load, and one blended charge for teen and adult drivers. Three of the four ratemaking principles are already broken. Your job on exam day is to name which ones and why.

The Statement gives four principles. Treat each as a yes/no test you run against a pricing situation. A single scenario can pass some and fail others. Use the mnemonic Future, All, Individual, Reasonable.

Principle 1: Future costs. A rate is a forecast, not a record. It is an estimate of the expected value of costs the policy will generate during the future period it will be in effect. Historical data is only the raw material. You must develop losses to ultimate, trend both frequency and severity, and adjust for benefit or coverage changes.

TRAP: Using undeveloped, untrended calendar-year losses violates Principle 1. The number is backward-looking; the rate must be forward-looking.

Principle 2: All costs. A sound rate provides for every cost tied to the transfer of risk.

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Exam shortcut

Run the mnemonic Future, All, Individual, Reasonable on every scenario. Undeveloped losses hit Future, a missing load hits All costs, one price for unlike risks hits Individual. For a list-the-costs item, recite the nine Section I categories: incurred losses, ALAE, ULAE, commission and brokerage, other acquisition, taxes/licenses/fees, policyholder dividends, general administrative, and UW profit and contingencies.

The full lesson (about 2,793 words, 19 min read) adds 2 worked examples, all 7 common mistakes, a self-check, free in the app.

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