fas 113 considerations on risk transfer testing gary venter & paul brehm clrs 2002
TRANSCRIPT
FAS 113Considerations on Risk Transfer Testing
Gary Venter & Paul BrehmCLRS 2002
Introduction
Overview of FAS 113
Overview of FAS 113
Establishes the conditions required for a Contract with a reinsurer to be accounted
for as reinsurance and Prescribes accounting and reporting
standards Note “conditions” and “standards” but
not methodology
Risk Transfer Essence
“Contracts that do not result in the reasonable possibility that the reinsurer may realize a significant loss from the insurance risk assumed generally do not meet the conditions for reinsurance accounting and are to be accounted for as deposits.”
Key Issues
Test is on reinsurer gaining risk, not on insurer reducing risk
Reasonable possibility Significant loss These are terms that invite informed
judgment VFIC did not look to draw a line, but
rather explore different methods of measuring risk to provide a consistent framework for such judgments
Reasonable and Significant
FASB only defines them through opposites Insignificant = having little or no
importance; trivial Reasonable = probability is more than
remote (from FAS 5) Test not met if the probability of a
significant variation in either the amount or timing of payments by the reinsurer is remote
Scheduled payments fail this test Reinsurer loss not required here, only
uncertainty
Reasonably Possible to Have Significant Loss
Based on present value of all cash flows Under reasonably possible outcomes
Seems to ask for a scenario generator Irrelevant if cash flows are identified as
premiums, loss shares, profit shares, etc. Interest rates not to vary across
outcomes Significance of loss is relative to amounts
ceded to reinsurer
Evaluating Reasonable, Significant
“Reasonable possibility” and “significant loss” appear closely intertwined
For a smaller loss to qualify, it would have to be more likely to occur
A 5% chance of a 100% loss might be more convincing than a 10% probability of a 25% loss
An Exception
Substantially all the insurance risk relating to the reinsured portions of the underlying insurance contracts has been assumed by the reinsurer
E.g., fronting Possibly any simple quota share
Depends on interpretation of “reinsured portions”
Reinsured Portions
A percentage of all the writings in a line of business would seem to be a reinsured portion
But a capped quota share, such as excluding cat losses, would not appear to take all of the insurance risk for the reinsured portion
It could still meet reasonable and significant tests, but not the exception
Related Statements
Related statements
NAIC Accounting Practices and Procedures Manual for Property and Casualty Insurance Companies Promulgated after FAS 113; draws heavily from
GAAP “Unless the so-called contract contains this
essential element of risk transfer, no credit whatsoever shall be allowed on account thereof in any accounting financial statement of the ceding insurer”
Related statements
SSAP 62 [§12] “Indemnification of the entity company
against loss or liability relating to insurance risk in reinsurance requires both of the following:
a. The reinsurer assumes significant risk under the reinsured portions of the underlying insurance agreements; and
b. It is reasonably possible that the reinsurer may realize a significant loss from the transaction.”
Related statements
IASB Principles for accounting for insurance
contracts (draft only) Principle 1.2 defines an insurance contract.
Reinsurance is simply treated as a sub-set. Principle 1.3 defines the uncertainty required
for a contract to qualify as an (re)insurance contract.
Introduces the word “material” in describing uncertainty
Does not distinguish between underwriting risk and timing
Current Risk Transfer Testing
Practitioner survey Response 1 Response 2 Response 3 Response 4 Response 5
Official Policy?
No No Yes Don’t know Don’t know
Probability 5% or 10%10% or
20%Reasonable worst case
chance
20% 10%
Significance 5% or 10%10% or
20%10% 20% 10%
Method
Probability distribution of E[ NPV
losses], compare to the present
value of premium.
Compare E[NPV loss]
to E[NPV premiums] by scenario
Scenario testing
NANet present value of all cash flows.
Cat example
Hypothetical cat exposure (left)
Cat program: $15M retention (1 in 10
years) $50M layer (1 in 100
years) Gross AAL = $6M; ceded
layer = $1.625 M Assume 50% target loss
ratio Distribution used to
calculate the distribution of reinsurer profit/loss
NPV calculated at 4%, assuming premiums collected at inception and losses paid at year end
Gross Cat Exposure
0.8000.8200.8400.8600.8800.9000.9200.9400.9600.9801.000
- 50,000,000 100,000,000 150,000,000 200,000,000
Losses in $
Pe
rce
nti
le
Cat example
Return on Premium
-1600.0%
-1400.0%
-1200.0%
-1000.0%
-800.0%
-600.0%
-400.0%
-200.0%
0.0%
200.0%
75.0% 80.0% 85.0% 90.0% 95.0% 100.0%
Cumulative Probability
Ret
urn
Finite example
Assume: E[AY LR] = 75%, with a
c.v. = 10%, distributed lognormally
ER = 32% Payout pattern at
right (industry average)
Finite Program: Cede $15M deposit
prem. 65% AP If LR>75%, cede:
(LR-75%)/(1-.65) S.t. max of 5%/(1-.65)
Distribution of Loss Ratio
0.0%
10.0%
20.0%
30.0%
40.0%
50.0%
60.0%
70.0%
80.0%
90.0%
100.0%
50.0% 60.0% 70.0% 80.0% 90.0% 100.0% 110.0%
0.0
1.0
2.0
3.0
4.0
5.0
6.0
Cumulative Lognormal Density
Accident Year Payout Pattern
40.0%
50.0%
60.0%
70.0%
80.0%
90.0%
100.0%
12 24 36 48 60 72 84 96 108 120 132 144 156 168 180
Months of Development%
of U
ltim
ate
Finite example – sample cash flows
Inter-Party Cash Flows Loss Ratio = 80%
(60.0)
(40.0)
(20.0)
-
20.0
40.0
60.0
80.0
100.0
Time in Months
Do
llars
in M
illio
ns
Cash Flow 15.0 92.9 - - (39.9) (36.8) (23.1) (15.5) (10.6) (7.1) (5.2) (2.8) (1.6) (0.2) - -
0 12 24 36 48 60 72 84 96 108 120 132 144 156 168 180
Finite example
-20.0%
0.0%
20.0%
40.0%
60.0%
80.0%
100.0%
120.0%
40.0% 50.0% 60.0% 70.0% 80.0% 90.0% 100.0%
Cumulative Probability
Ret
urn
on
Pre
miu
m
Considerations
Burden of proof is on the cedant; “proof” is that the reinsurer can lose money, not that cedant risk is reduced
Analysis should include: Distribution of possible results Cash flow estimates Appropriate, common discount rate Thorough understanding of contract terms
Analysis does not include: Taxes Reinsurer expenses
The 10-10 rule, or VaR tests in general are “sufficient, but not necessary.” Risk assessment could/should consider the whole distribution…other risk metrics can be considered.
Alternatives to VaR Tests
Alternative Measures of Risk
Expected Deficit Tail Value at Risk Other Coherent Measures Exponential Transforms Transforming the 10-10 Rule
Expected Deficit
Loss x Probability Single loss: 10-10 ~ 5-20 ~ 2-50 etc. Or average deficit: expected value over
all scenarios of the reinsurers loss in the losing scenarios = E(P – L)+
From examples: Property Catastrophe = -40% Quota Share = -3% Finite = -3%
Coherent Risk Measures
1. Sub-additivity: (X+Y) (X) + (Y)2. Monotonicity: If X Y, (X) (Y)3. Positive Homogeneity: for 0 (X) =
(X)4. Translation Invariance: (X+a) = (X)+a Examples:
Means under transformed probabilities, i.e., E*(X) = xf*(x)dx, where f* is a transformation of f
TVaR
Tail Value at Risk
TVaR = E[X |x > VaR ] = x(
xf(x)dx/(1–)
That is, expected losses when loss exceed threshold
= E*(X) where f* is 0 below x( and f/(1–) above
Examples at 90th percentile Property Catastrophe = -319% Quota Share = -42% Finite = -23%
Distinguishes last two, which deficit did not Maybe 20% – 25% right target range
Problems with and Alternatives to TVaR
Problems No risk attributed to losses below the threshold Linear impact above the threshold
Alternatives E* with some other f*
E.g., F*(x) = (b–1(F(x))+a) = Wang transform where is the standard normal distribution
Example of Wang Transform
Wang Transform for Pareto 1-(1+x/100)^-1.01 with 0.7u - 1.3
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
1 10 100 1,000 10,000 100,000 1,000,000 10,000,000 100,000,000
TransformedOriginal
Measuring Risk with Wang Transform
Determine transform parameters Test different parameters with known treaties
Look at expected reinsurer profit under transformed distribution
If negative, there is risk
Risk with Parameters from Example, i.e., 0.7u – 1.3
From examples: Property Catastrophe = -440% (P = $3.25M) Property Catastrophe = -2% (P = $25M) Quota Share = -19%
Cat treaty that is too expensive won’t pass risk transfer by this test Reinsurance premium levels:
Good deal Bad deal So bad it doesn’t qualify for risk transfer No risk at all
Van Slyke – Kreps Approach
Uses a market pricing approach to find the market risk load to retrocede the entire contract P & L
Uses an exponential risk-adjusted value of losses:RAV = c ln{E[exp(X/c)]} with capital c
Then they show the risk load should obey: = E[Y] + (/s) ln E[e – sY/], where s is an industry parameter (they suggest about 0.4) and Y is return on premium
Solve for and use c = /s to find RAV Set a cutoff like RAV(Y)>–70% for risk transfer
Van Slyke – Kreps Test
From examples: Property Catastrophe = 75% (P = $3.25M) Property Catastrophe = -67% (P = $25M) Quota Share = 25%
Again if cat pricing gets too high, risk transfer fails
Initial cat price looks small by market risk Quota share has a good deal of risk
Transformed 10-10 Rule
Transforms normal distribution to make rule more applicable for heavy tails
Let X be ROP– i.e., ROP if negative, else 0
F is distribution of X; define F*: 1. For a pre-selected security level =10%, let =
1()= 1.282, which is the -th percentile of the standard normal distribution
2. Apply the Wang Transform: F*(x) = [1(F(x)) ]. 3. Calculate the expected value under F*: WT() =
E*[X] 4. If WT() < 10%, it passes the test, otherwise it
fails
Application
For normal distributions this gives the 10-10 rule
For the cat example, risk transfer fails at a premium of $35M
For the quota share, WT(0.10) = 14.39% < 10%, so it passes
Risk Transfer Tests Summary
All based on measures of risk All have to be calibrated to judgment
level All work on regular and finite deals Can calibrate using contracts where risk
transfer can be more confidently judged
Conclusions
Conclusions
FAS 113 is a standard, not a methodology; requires: A reasonable possibility Of a significant loss
FAS 113 does dictate some considerations: Cash flows between parties Appropriate, common discount rate Thorough understanding of contract terms
Risk associated with “possibility” and “significance” are typically measured with a VaR measure using 10% and 10% as the critical values
Conclusions
Other risk measures exist and could be applied to the risk transfer question -- EPD, TVaR, and distributional transforms
Regardless of risk measure, critical values need to be established – judgment will still be required
There is a disconnect between FAS 113 (reinsurer loss) and risk testing for Index Securitization (reduction in cedant risk)