Siewert Flashcards
Advantages of high deductible plans (5)
- achieves price flexibility while passing additional risk to larger insureds
- reduced residual market charges and premium taxes
- cash flow advantages for the insured (b/c insurer pays first)
- provides incentive for insureds to control losses while providing large loss protection
- allows “self-insurance” without rigorous state requirements
Per aggregate XS losses under the LR approach
per aggregate XS loss = prem * ELR * (1 - per occurrence charge) * per aggregate charge
Advantages of the LR approach to estimating XS losses (3)
- can be used with no/immature data
- LR estimate can be consistently tied to pricing programs
- relies on a more credible pool of company and industry experience
Disadvantages of the LR approach to estimating XS losses (2)
- ignores actual experience (less useful for mature AYs)
2. may not properly reflect account characteristics if development emerges differently due to exposures written
Reason limits should be indexed for inflation
allows combining multiple experience periods by keeping the proportion of deductible/excess losses constant about the limit
Advantages of the implied development approach to estimating XS losses (3)
- provides estimate of XS losses at early maturities, even if no losses have yet emerged
- limited LDFs are more stable than unlimited
- ultimate limited losses are used to calculate the service revenue asset
Disadvantage of the implied development approach for estimating XS losses
does not explicitly recognize XS loss development
Limited tail factor formula using an inverse power curve
age-to-age factor = 1 + a * (starting age/12 + c) ^ -b
Advantage and disadvantage of using an inverse power curve for the limited tail factor selection
advantage: produces uniformly decreasing tail factors that are consistent for each limit
disadvantage: bias exists b/c each limit is extended to the same maturity
Limited LDF under the direct development approach for estimating XS losses
limited LDF = LDF * severity relativity at ultimate / severity relativity at time t
severity relativity = limited severity / unlimited severity
XS LDF under the direct development approach for estimating XS losses
LDF * ( 1 - severity relativity at ultimate ) / ( 1 - severity relativity at time t
Weighted average form of the direct development approach
LDF = severity relativity * limited LDF + ( 1 - severity relativity ) * XS LDF
Advantages of the direct development approach for estimating XS losses (2)
- explicitly recognizes excess development
2. ensures consistency b/w limited and excess LDFs
Disadvantages of the direct development approach for estimating XS losses (2)
- XS LDFs tend to be volatile and overly leveraged
2. not possible to produce estimates if no losses have emerged
Credibility weighting/BF method for estimating XS losses
ultimate loss = losses to date + expected loss * (LDF - 1) / LDF