Reserves Flashcards
Sources of requirements and guidance for setting reserves
- State laws and regulations - prescribe certain reqs for calculating reserves or language to include in opinion
- NAIC Accounting Practices and Procedures Manual - for when state regs are silent
- NAIC annual statement instructions - specify what should be included in certain line items
- ASOPs
- Health Reserves Guidance Manual (HRGM) - assists actuaries that estimate reserves and examiners who review statements
- Actuarial practice notes - provide info on current practices in new and developing areas
Standard wording for the actuarial opinion in the health insurance statement
- Identification paragraph - identify actuary, relation to company
- Scope paragraph - identify liabilities opinion will discuss
- Opinion paragraph - states that it is the actuary’s opinion that liabilities on the balance sheet:
a) are in accordance with accepted actuarial standards and sound actuarial principles
b) are based on relevant and appropriate actuarial assumptions
c) meet the reqs of state laws
d) make good and sufficient provision for all act. liabilities of the org
e) are computed based on assumptions consistent with prior year’s assumptions
f) include appropriate provision for all actuarial items that ought to be established - Statements - that methods, considerations, and analyses confirm to relevant ASOPs
Additional considerations in establishing claim reserves
- Incurral dating method
- Reserve basis (stat, GAAP, tax)
- Interest - reserves for claims w/ long payouts may be discounted to reflect interest
- Controls - data should be tested for accuracy
- Insurance characteristics - reserves vary w/ type of risk
- Reserve cells - for homogeneous biz categories
- Managed care features - e.g., discounts, provider RSAs
- Trends
- Seasonality
- Claim admin expenses (reserve = % of claim reserve)
- Morbidity assumptions
Advantages and disadvantages of stochastic approaches for reserving
Advantages
- Provides explicit guidance for establishing PAD
- Provides guidance on potential variability in reported earnings and reserve levels
- Allows for quantification of variability in items like seasonality and claim trend
- Allows for improved eval of reserve estimates
Disadvantages
- May give false sense of confidence to others b/c of sophistication
- May be too complex to be used by all who have to use it
- Not every process can be modeled rigorously
Stochastic modeling techniques for reserving
- Fitting a parametric distribution to the data - best when process being modeled is stationary over time
- Ordinary least squares regression - best for investigating effects of specific explanatory variables like trend
- Generalized linear models - Improve upon ordinary reg models b/c allow for non-normal distribution, bounded variable
- Stochastic time series models - for when values are correlated across time (seasonal/cyclical patterns)
- Monte Carlo simulation - when combining results from any of the other techniques
Considerations when developing a stochastic approach to reserve estimation
- Availability of data
- Appropriateness of data - representative?
- Access to statistical software
- Appropriateness of model
- Covariances of modeled estimates - must be estimated
Features of LTD and LTC contracts to consider when setting reserves
- Periodic benefits - usually specified monthly/daily amounts
- Long term benefit periods
- Elimination periods
- Optional benefits - may affect timing or amount of monthly payments
- Integration of benefits
- Limitations and exclusions
Types of long term claims and reserve methods
- Open claims - claim currently being paid (uses tabular reserves)
a) Reserve = sum of benefit * continuance * v (continuance = prob of claim continuing to receive payments in future) - Pending claims - reported but payments haven’t begun
a) Reserve if in elim period = pending factor * tabular reserve
b) Reserve if past elim period = pending factor * (tabular reserve + AV of past payments not yet made) - IBNR claims - reserve can be estimated using either lag or LR method
Methods for evaluating claim reserve adequacy
- Runoff studies (usually by incurral year) - previous reserve balances are compared to subsequent claim payments and reserve balances, w/ adj for interest
- A/E claim termination rate studies (usually by claim duration) - compares based on table used for reserving
- Experience studies - typically involves a GPV. Reserve is adequate if PV of future gross premiums + reserve > PV of future claim cost
Types of reserve reporting
- Regulatory reporting - conservative
- GAAP reporting - realistic with PAD
- Experience reporting for employers and providers
- Valuations for acquisitions - reserves are often focal point of negotiations b/c material to profitability; often final settlement after several months to revisit purchase price and assess impact of claim reserves
Types of claims liabilities and reserves
- Due and unpaid - reported, adjudicated, and processed, but not paid; usually small; use historical averages
- ICOS - reported and received, not adjudicated and paid; use avg claim * # of claims
- IBNR - project by using existing payment data to develop average exp claims or claim pmt patterns
- LAEs - usually % of unpaid claims liability
- PV of amounts not yet due (PVANYD) = unaccrued - estimate of future amounts due on known open claims, such as for disability or LTC; usually reserved on a seriatim basis w/ tabular approach
- Resisted claims - in litigation; reserved assuming full benefits and possibly amounts for damages
- Outstanding accounting feed (may overlap with due and unpaid) - amounts which have been acknowledged as payments, but no check cut so reserves based on AP
Methods of estimation for claim reserves
- Case reserves - claim-by-claim basis; can’t use for IBNR
a) Examiner’s method - estimate ultimate pmt and deduct what’s been paid already
b) Average size claim method - # of reported claims * average claim amount - amt already pd - Projection method (aka formula or factor method) - develop historical claim rate as function of some measure of exposure, then apply this rate to projected exposure (e.g., projected PMPM claim costs * MMOS - claims already pd)
- LR method (aka claim cost method) - use where volume is low or to validate other methods; LR * earned premium - claims already pd
- Tabular method - apply factor to open claims; typically used for LTC or disability, can’t use for IBNR
- Development method (aka lag, completion, or triangulation method) - projects historical claim lag pattern into future to estimate reserve based on experience data
- Stochastic approaches
Types of coverages for which development method works well
- Ability to record incurral and pmt dates for each claim
- Fairly consistent lag patterns
- Short incurral periods relative to ultimate run out
- Sufficient volume of biz in each cell (for stable results)
- Availability of either earned premium or expo data
Steps of development method
- Summarize data by incurral month vs paid month to get claims triangle
- Sum cells of first claims triangle to get cumulative paid claims by incurral month
- Calculate age-to-age development factors as ratios of month to month cumulative claims
- Smooth the month-to-month variations in age-to-age factors
- Calculate age-to-ultimate factors from smoothed a-t-a factors
- Divide each incurral month’s cumulative paid claims by its completion factor to get fully incurred claims
- Subtract cumulative paid claims from fully incurred claims to get unpaid claims liability
Smoothing methods to apply to development factors
- Simple averaging - such as 3 month average; could do 12 but trends may get buried
- Removing bumps - throw out high and low and average the rest; could just remove shock claims from triangle and analyze separately
- Weighted averaging - give more cred to recent months
- Other types of means - harmonic, geometric
- Dollar-weighted methods (vs ratio weighted) - average cum pmts for consecutive lag months and then compute age-to-age factors as ratio of those averages
- Per member age-to-age ratios - divide pmts per lag by expo to create PMPM pmts, and then apply dollar-weighted approach