Cummins - Capital Flashcards
Capital allocation
Cummins - Capital
determination of the amount of a firm’s equity capital that is assigned to each project or LOB
Firm mission
Cummins - Capital
maximize market value
Uses for capital allocation (2)
Cummins - Capital
- measure performance by LOB by ensuring each LOB is making adequate profit to cover its cost of capital
- making LOB pricing and UW decisions
Measures of return (3)
Cummins - Capital
- risk-adjusted return on capital (RAROC)
- economic value added (EVA)
- economic value added on capital (EVAOC)
Risk-adjusted return on capital (RAROC(i))
Cummins - Capital
RAROC = net income after tax & interest expense / allocated capital
Measuring return adequacy using RAROC
Cummins - Capital
compare RAROC to cost of capital (aka hurdle rate or required return)
if RAROC >= cost of capital - LOB/project adds to firm value
if RAROC < cost of capital - LOB/project is reducing firm value
Potential firm actions if a LOB is reducing firm value (3)
Cummins - Capital
- re-pricing the LOB
- tightening UW standards
- withdrawing from the LOB
Economic value added (EVA) - definition and formula
Cummins - Capital
measure of return on investment in excess of its required return
EVA = net income - required return * allocated capital
Measuring return adequacy using EVA
Cummins - Capital
EVA >= 0 means LOB adds value to the firm
EVA < 0 means LOB is reducing firm value
Economic value added on capital (EVAOC)
Cummins - Capital
rate of return form of EVA
EVAOC = EVA / allocated capital
Methods to determine the cost of capital for a LOB (2)
Cummins - Capital
- pure play approach
2. full information betas
Pure play approach to estimating the cost of capital for a LOB
(Cummins - Capital)
estimates cost of capital by finding mono-line “pure play” firms exclusively offering a single LOB
Reasons the pure play approach is difficult (2)
Cummins - Capital
- few mono-line firms exist
2. even if a mono-line firm is found, it may have significantly different UW risk characteristics
Full information betas approach to estimating the cost of capital for a LOB
(Cummins - Capital)
estimates cost of capital by running a regression on a multi-line firm’s data
Reason the full information betas approach is difficult
Cummins - Capital
often lack data needed
Capital allocation techniques (5)
Cummins - Capital
- risk-based capital (RBC)
- capital asset pricing model (CAPM)
- value at risk (VaR)
- insolvency put option/expected policyholder deficit (EPD)
- marginal allocation methods
Reasons RBC should not be used for capital allocation (5)
Cummins - Capital
- based on worst-case scenario instead of statistical concepts
- ignores correlations
- based on book value (vs. market value)
- ignores important sources of risk such as interest rate risk
- has no theoretical foundation
Firm’s equity beta coefficient for CAPM and formulas (2)
Cummins - Capital
equity beta = normal CAPM beta»_space; used to estimate the firm’s cost of capital
beta = covariance(firm return, market return) / variance(market return)
beta = beta(assets) * (1 + sum of LOB liability leverage ratio) + sumproduct(LOB beta * LOB premium leverage ratio)
where
liability leverage ratio = liability / total equity and
premium leverage ratio = premium / total equity
LOB required UW return under CAPM (r(i))
Cummins - Capital
r = -LOB liability leverage ratio * risk-free rate + LOB beta * market risk premium
TCR under CAPM
Cummins - Capital
TCR = 1 - required UW return
Components of the LOB required UW return under CAPM (2)
Cummins - Capital
- -k(i) * risk-free rate = interest paid by LOB for use of policyholder funds
- LOB beta * (market return - risk-free rate) = LOB rate of return based on its systematic risk
Implication of CAPM
Cummins - Capital
not necessary to allocate capital by LOB, instead charge each LOB for the CAPM cost of capital, which reflects the LOB beta and leverage ratio
Problems with the CAPM approach to capital allocation (3)
Cummins - Capital
- reflects systematic UW risk but does not capture risk of extreme events
- LOB betas are difficult to estimate
- rates of return are driven by factors other than beta, which are ignored by CAPM
Value at risk (VaR)
Cummins - Capital
max amount a firm could lose with a specified probability
use w/exceedance probabilities for capital allocation
Exceedance probability
Cummins - Capital
probability losses from a LOB will exceed the expected losses + allocated capital
epsilon(i) = Pr(Loss(i) > E[Loss(i)] + allocated capital(i))
Using exceedance probabilities to allocate capital
Cummins - Capital
solve for the amount of capital needed for each LOB such that each LOB exceedance probability = target exceedance probability
Exceedance probability curve and relative risk
Cummins - Capital
plots probability (y-axis) against (E[L] + C) / E[L] on the x-axis - curve slopes down & right
more risky LOB have a higher x-axis ratio for a given probability level
Interpretation of required capital to expected loss ratio
Cummins - Capital
$ amount the insurer would need to commit in capital for each dollar of expected losses to achieve the given exceedance probability
= 1 - asset-to-liability ratio
Problems with the VaR approach to capital allocation (3)
Cummins - Capital
- firm may not have enough total capital to meet the specified exceedance probability
- does not reflect diversification benefit (b/c uses stand-alone exceedance probabilities)
- does not reflect the amount by which losses will exceed the exceedance probability
Insolvency put option (aka expected policyholder deficit (EPD))
(Cummins - Capital)
considers the policyholders’ claim on the firm a put option on the firm’s assets (A) with strike price = firm’s liabilities (L)
at maturity:
if A >= L, policyholders receive L
if A < L, policyholders receive A
Value of the policyholders’ claim under the insolvency put option/expected policyholder deficit (EPD)
(Cummins - Capital)
value of policyholders’ claim = PV(losses) - value of the insolvency put option
= Le^-rt - value of put option
Reason the insolvency put option/expected policyholder deficit approach is superior to VaR for capital allocation
(Cummins - Capital)
it considers the expected value of loss (vs. the probability of losses exceeding a specific amount)
Advantage of the insolvency put option/expected policyholder deficit approach to capital allocation
(Cummins - Capital)
consistent with the theory of pricing risky debt contracts
Disadvantage of the insolvency put option/expected policyholder deficit approach to capital allocation
(Cummins - Capital)
does not consider diversification
EPD ratio
Cummins - Capital
EPD ratio = EPD / Liabilities
Asset-to-liability ratio
Cummins - Capital
A / L = 1 + C / L
Marginal capital allocation methods (2)
Cummins - Capital
- Merton-Perold (M-P)
2. Myers-Read (M-R)
Risk capital
Cummins - Capital
smallest amount that can be invested to insure value of firm’s net assets
Sources of risk capital (2)
Cummins - Capital
- if no default risk, risk capital is supplied by the firm
2. if default risk, risk capital is partially supplied by liability holders
Merton-Perold (M-P) method for capital allocation
Cummins - Capital
extension of the insolvency put option/expected policyholder deficit method that accounts for diversification
M-P allocated capital(i) = total capital - capital (all LOB except i)
where the total capital and joint capital are estimated using EPD
Merton-Perold (M-P) method vs. Myers-Read (M-R) method total % of firm’s capital allocated
(Cummins - Capital)
M-P will allocate < 100% - unallocated capital = “corporate” level capital
M-R will allocate 100%
Best use for the Merton-Perold (M-P) method for capital allocation
(Cummins - Capital)
decision-making when adding entire LOB to the firm
EVA and RAROC metrics in Merton-Perold (M-P) method vs. Myers-Read (M-R) method
(Cummins - Capital)
M-P produces higher EVA and RAROC b/c of unallocated capital
Myers-Read (M-R) method for capital allocation
Cummins - Capital
allocates capital by determining the effect of very small changes in loss liabilities for each LOB
allocated capital = s(i) * L(i)
s(i) = s - (dp/dsigma) / (dp/ds) * [(sigma(i,L) - sigma(L)^2) - (sigma(i,V) - sigma(L,V))] / sigma
s = surplus-to-liability ratio p = insolvency put option per $ of liabilities sigma(i,L) = covariance parameter b/w losses in LOB & firm's losses sigma(i,V) = covariance parameter b/w losses in LOB & firm's assets sigma(L,V) = covariance parameter b/w firm's losses & assets
Main difference between Merton-Perold (M-P) method and Myers-Read (M-R) method for capital allocation
(Cummins - Capital)
M-P uses a macro marginal allocation
M-R uses a micro marginal allocation
Best use for the Myers-Read (M-R) method for capital allocations
(Cummins - Capital)
decision-making for firm’s normal operations
Allocated capital under the M-R method when a LOB has a large covariance with total assets
(Cummins - Capital)
receives less allocated capital b/c the large correlation reduces risk (acts as a natural hedge)
Allocated capital under the M-R method when a LOB has a large covariance with total losses
(Cummins - Capital)
receives more allocated capital b/c of increased risk
Agency costs (frictional costs)
Cummins - Capital
costs incurred when managers behave opportunistically in a way that fails to maximize firm value
Informational costs (frictional costs)
Cummins - Capital
costs incurred through adverse selection & morale hazard
Sources of costly capital/market frictions/frictional costs (3)
(Cummins - Capital)
- agency & information costs
- double taxation of investment income
- regulatory costs/restrictions leading to insurer’s holding inefficient portfolios
Reason a spread (aka cost of capital) develops b/w returns that could be earned by investing directly in capital markets and actual returns earned on capital for insurers
(Cummins - Capital)
existence of market frictions/frictional costs