Bodoff: Capital Allocation by Percentile Layer Flashcards
External forces dictating how much capital an insurance firm should hold
Regulators
Rating agencies
Investors
Kreps allocation of capital
Really the allocation of the required rate of return on capital
VaR approach of allocating capital (Bodoff)
Allocates capital only to those components that contribute to one particular loss scenario
TVaR approach for allocating capital
Holds capital for average loss event even at the given percentile; still ignores losses below the tail threshold
Percentile layer of capital
Layer of capital
Conditional exceedance probability for event (i)
Two reasons loss event tends to receive a larger percentage allocation in the upper layers than lower layers
- In upper layer, allocating to fewer events
- In upper layers, allocating wider layer of capital (percentile layer tends to widen as loss amount increases)
“Horizontal procedure” of capital allocation
Allocating each layer of capital to all losses that penetrate the layer
“Vertical procedure” of marginal capital allocation
Takes each loss event and allocates capital to it for all layers it penetrates
Horizontal then vertical
Vertical then horizontal
Allocation of capital by layer
Three things a loss event’s allocated capital depends on
- Probability of loss event
- Severity of loss event
- Loss event’s inability to share burden with other loss events (dissimilarity in severity to other loss events)
Advantages for capital allocation by percentile layer