IFoA SA1 study materials
IFoA SA1 study resources

IFoA SA1 key terms

IFoA SA1 · Get comfortable with the vocabulary.

Community rating

A pricing rule where all members of a defined pool pay the same premium regardless of their individual health status, age or claims history, with variation allowed only for broad factors such as family size or region.

Related: Experience rating, Adverse selection, Risk equalisation
Experience rating

Setting premiums by reference to the past claims cost of the specific group or individual being insured, so that groups with higher historic utilisation pay more in future periods.

Related: Community rating, Adverse selection, Credibility theory
Adverse selection

The tendency for people who expect to need healthcare to buy more generous cover or stay in a pool, while low-risk people exit, driving up average cost when insurers cannot observe risk.

Related: Community rating, Moral hazard, Risk equalisation
Moral hazard

Behavioural change caused by insurance cover, such as increased utilisation or less preventive care, because the insured does not bear the full marginal cost of the treatment consumed.

Related: Adverse selection, Cost sharing, Supplier-induced demand
Risk equalisation

A mechanism that transfers funds between insurers in a market to compensate those with higher-risk members, typically through a central pool funded by levies on insurers with lower-risk business.

Related: Community rating, Adverse selection, Risk adjustment
Risk adjustment

A formula-based payment or premium correction that varies with measured morbidity characteristics of enrolled members, used to make capitation or community-rated premiums fairer across insurers and providers.

Related: Risk equalisation, Capitation, Community rating
Capitation

A fixed payment per enrolled person per period, made to a provider or insurer regardless of how much care that person actually uses, shifting utilisation risk onto the receiving party.

Related: Risk adjustment, Bundled payment, Provider risk sharing
Bundled payment

A single price covering a defined episode of care across multiple providers and settings, such as a joint replacement including surgery, hospital stay and rehabilitation, replacing item-by-item reimbursement.

Related: Capitation, Fee-for-service, Provider risk sharing
Fee-for-service

Reimbursement in which the payer pays a separate amount for each service, test or procedure delivered, so provider income rises with volume and intensity of activity.

Related: Bundled payment, Supplier-induced demand, Capitation
Supplier-induced demand

The situation where clinicians, acting as both adviser and supplier, recommend more care than a fully informed patient would choose, because the clinician benefits from the additional activity.

Related: Fee-for-service, Moral hazard
Cost sharing

Provisions such as deductibles, coinsurance and copayments that require the insured to pay part of the cost of care, reducing moral hazard but potentially discouraging necessary treatment.

Related: Moral hazard, Deductible, Coinsurance
Deductible

An amount of claims the insured must bear before the insurer pays anything, often applied per year, which removes small claims from the insurer and reduces administration cost.

Related: Coinsurance, Cost sharing, Policy excess
Coinsurance

A percentage share of each claim that the insured pays, so that costs above any deductible are split between insurer and insured in fixed proportions.

Related: Deductible, Cost sharing
Policy excess

A fixed amount deducted from each claim payment, common in health cash plans and income protection, distinct from a deductible that must be exhausted before cover begins.

Related: Deductible, Coinsurance
Morbidity

The incidence, prevalence and severity of illness or injury in a population, measured through rates of diagnosis, hospitalisation, disability or recovery used as the basis for health insurance pricing.

Related: Incidence rate, Recovery rate, CI incidence rate
Incidence rate

The number of new cases of a condition arising per unit of exposed population per unit of time, usually expressed per 1,000 or per 100,000 person-years.

Related: Morbidity, Prevalence, CI incidence rate
Prevalence

The proportion of a population that has a condition at a given point in time, reflecting both past incidence and survival with the disease.

Related: Incidence rate, Morbidity
CI incidence rate

The probability per year that a previously healthy insured life suffers a critical illness event that triggers a lump-sum payment under the policy definition.

Related: Incidence rate, Accelerated benefit, Morbidity
Accelerated benefit

A critical illness payment that reduces the sum assured payable on later death, so the death benefit is paid early rather than in addition to the CI lump sum.

Related: CI incidence rate, Stand-alone CI cover
Stand-alone CI cover

Critical illness insurance where the lump sum is paid in addition to any death benefit, so the policy carries both morbidity and mortality risk.

Related: Accelerated benefit, CI incidence rate
Income protection

Insurance that replaces a proportion of earned income during sickness or disability, typically paying a monthly benefit after a deferred period and until recovery, retirement or the end of the benefit term.

Related: Deferred period, Recovery rate, Waiver of premium
Deferred period

The waiting time after the onset of sickness or disability before income protection benefits start, during which the insured relies on sick pay or savings.

Related: Income protection, Recovery rate
Waiver of premium

A policy feature under which premiums are not collected while the insured is disabled or seriously ill, keeping cover in force without payment during claim.

Related: Income protection, Deferred period
Recovery rate

The probability per unit of time that a person currently claiming or disabled returns to an active, non-claiming state, a key decrement in income protection and long-term care models.

Related: Incidence rate, Income protection, Multi-state model
Multi-state model

A model representing a life moving between states such as healthy, ill, disabled and dead, with transition intensities estimated from data and used to price and reserve health business.

Related: Recovery rate, Incidence rate, Incurred but not reported
Incurred but not reported

Claims that relate to treatment already given or events already occurred but which have not yet been notified to the insurer by the reporting date, requiring an estimate in reserves.

Related: Incurred but not enough reported, Claim run-off triangle, Unearned premium reserve
Incurred but not enough reported

The reserve strengthening needed when claims already reported are expected to develop further, for example because case estimates are too low or reporting is delayed.

Related: Incurred but not reported, Claim run-off triangle
Claim run-off triangle

A table of cumulative or incremental claim amounts by accident period and development period, used to project ultimate cost through chain-ladder or similar techniques.

Related: Incurred but not reported, Incurred but not enough reported, Unearned premium reserve
Unearned premium reserve

The portion of premium already received that relates to cover still to be provided after the valuation date, held as a liability and often tested for adequacy against expected future claims.

Related: Premium deficiency, Incurred but not reported
Premium deficiency

A shortfall arising when the expected future claims, expenses and profit margin on unexpired cover exceed the unearned premium held, requiring an immediate reserve strengthening.

Related: Unearned premium reserve
Solvency capital requirement

The amount of capital a regulator requires an insurer to hold so that it can meet obligations with a specified high probability over a one-year horizon, covering underwriting, market, credit and operational risks.

Related: Risk margin, Own risk and solvency assessment, Best estimate liability
Best estimate liability

The probability-weighted present value of future cash flows arising from in-force business, before any prudential margin, calculated on realistic assumptions about morbidity, lapses and expenses.

Related: Risk margin, Solvency capital requirement, Persistency
Risk margin

An additional amount held above the best estimate liability to compensate a hypothetical transferee for bearing non-hedgeable insurance risk, often calculated as a cost of capital.

Related: Best estimate liability, Solvency capital requirement
Own risk and solvency assessment

An insurer's internal process for identifying, measuring and managing its own risks and assessing the capital needed, documented and submitted to the supervisor as part of governance.

Related: Solvency capital requirement, Risk appetite
Risk appetite

The amount and type of risk an insurer is willing to accept in pursuit of its objectives, expressed through limits, tolerances and qualitative statements that guide decisions.

Related: Own risk and solvency assessment, Capital allocation
Capital allocation

The process of dividing a firm's total required capital among business lines, products or risks, so that each unit is charged for the capital it consumes and performance can be compared.

Related: Risk appetite, Diversification benefit, Reinsurance
Diversification benefit

The reduction in total capital or risk achieved because different risks are not perfectly correlated, so the aggregate requirement is less than the sum of the standalone amounts.

Related: Capital allocation, Reinsurance
Persistency

The proportion of policies that remain in force over time, the complement of lapse and surrender rates, which strongly affects profitability of long-term health business.

Related: Best estimate liability, Adverse selection
Provider risk sharing

An arrangement in which a hospital or clinical group bears part of the financial consequence of the care it delivers, for example through shared savings, withhold or capitation arrangements.

Related: Capitation, Bundled payment, Supplier-induced demand
Asset-liability management

The coordinated management of assets and liabilities so that cash flows, durations and sensitivities match, protecting solvency against interest rate, inflation and currency movements.

Related: Duration matching, Reinvestment risk
Duration matching

Structuring the asset portfolio so that its interest rate sensitivity matches that of the liabilities, reducing the impact of yield changes on the surplus.

Related: Asset-liability management, Reinvestment risk
Reinvestment risk

The risk that future cash flows from maturing assets must be reinvested at lower yields than assumed, reducing the return available to meet long-dated claim payments.

Related: Asset-liability management, Duration matching
Actuarial judgement

The reasoned selection of assumptions and methods where data are limited or conflicting, which must be documented, communicated transparently and justified to peers, auditors and the regulator.

Related: Best estimate liability, Professional scepticism
Professional scepticism

An attitude of questioning whether evidence and assumptions are complete and reliable, rather than accepting information at face value, particularly when advising on reserves or capital.

Related: Actuarial judgement