Brehm ch.5 Flashcards
what is the underwriting cycle defined as?
Brehm ch.5
the recurring pattern of increases and decreases in insurance prices and profits
what are the four stages of the evolution of a LOB?
Brehm ch.5
- emergence
- control
- breakdown
- reorganization
what happens in the emergence phase of the evolution of a LOB?
(Brehm ch.5)
- new LOB arises - thin data, demand quickly grows, pricing erratic
- price wars with new competition entering market
- sudden price correction occurs, weak competitors leave market
- profitable period follows -> more competitors and “restart” cycle
what happens in the control phase of the evolution of a LOB?
Brehm ch.5
- stabilization of LOB via collective coercive control
- rating bureaus and state DOIs regulate price changes
what are three examples of “collective coercive control” that may occur in the control phase?
(Brehm ch.5)
- restricting entry
- standardizing insurance products
- stabilizing market shares
what occurs in the breakdown phase of the evolution of a LOB?
(Brehm ch.5)
- due to technological and societal changes, new types of competitors enter the market and take business away
- causes a breakdown in the control regime
what occurs in the reorganization phase of the evolution of a LOB?
(Brehm ch.5)
-return to the conditions of the “emergence” phase -> new version of old LOB emerges
what are the emergence phase dynamics driven by?
Brehm ch.5
competition
what are the control phase dynamics driven by?
Brehm ch.5
statistical data lags (growing lines experience large losses in early years and EP “catch up” to losses in financials)
what are the breakdown phase dynamics driven by?
Brehm ch.5
competition and data lags
what are the reorganization phase dynamics driven by?
Brehm ch.5
competition
what does one theory suggest that time lags between compilation of historical data and implementation of new rates results in?
(Brehm ch.5)
- time lags lead to poor extrapolation by actuaries during ratemaking
- historical data may suggest further rate increases are needed when rates have actually returned to adequate levels
what does another theory suggest about time lags between historical data analysis and rate implementation?
(Brehm ch.5)
reporting and regulatory delays cause the cycle effect EVEN WHEN actuaries behave rationally
how does competition contribute to the underwriting cycle?
Brehm ch.5
- not all competitors have same view of future
- inexperienced firms may have poorer loss forecasts than mature firms -> drop prices -> lower market rates
what effect does a shock like a natural catastrophe have on the market?
(Brehm ch.5)
- insurance capital is reduced
- > supply is constricted and prices increase
- > profit may decline as better performing firms leave the market first
what are three examples of how economic drivers affect insurance profitability?
(Brehm ch.5)
- insurance profitability is linked to investment income
- cost of capital is linked to wider economy
- expected losses in some LOBs are affected by inflation, GNP growth, or unemployment
what is a dependent variable in a model?
Brehm ch.5
the variable being modeled
what are the independent variables in a model?
Brehm ch.5
the predictors
for the underwriting cycle, what do most models use as the dependent variable?
(Brehm ch.5)
loss ratio or combined ratio
what are six potential independent variable categories for models for the underwriting cycle?
(Brehm ch.5)
- historical values of the dependent variables and its components
- internal finance variables
- regulatory/ratings variables
- reinsurance financials
- econometric variables
- financial market variables
what are four examples of historical values of the dependent variables and its components that might be used as independent variables for the underwriting cycle model?
(Brehm ch.5)
- historical combined ratios
- premiums
- losses
- expenses
what are four examples of internal finance variables that might be used as independent variables for a u/w cycle model?
(Brehm ch.5)
- reserves
- investment income
- catastrophe losses
- capital
what are two examples of regulatory/rating variables that might be used as independent variables for a u/w cycle model?
(Brehm ch.5)
- upgrades
- downgrades
what are three examples of econometric variables that might be used as independent variables for a u/w cycle model?
(Brehm ch.5)
- inflation
- unemployment
- GNP
what are two examples of financial market variables that might be used as independent variables for a u/w cycle model?
(Brehm ch.5)
- interest rates
- stock market returns
what are six sources of competitor intelligence that can help predict the “turn” in the u/w cycle?
(Brehm ch.5)
- firm’s own agents and field staff
- customer surveys
- trade publications
- news scannings
- rate filings
- internet
what are three styles of modeling the underwriting cycle?
Brehm ch.5
- soft approaches
- behavioral modeling (econometric)
- technical modeling