
336 Pricing in General Insurance
21.3 Relationship with Severity Curves
As we mentioned previously, exposure curves are in one-to-one correspondence with
severity curves, so they can be considered market severity curves that are reengineered to
look like Figure 21.2. To make this clearer, we show in Figure 21.3 a normalised severity
curve and the exposure curve that corresponds to it. How does one calculate the exposure
curve corresponding to a given severity curve, and vice versa?
Equation 21.7 provides a recipe for calculating the exposure curve based on the severity
curve. To obtain the severity curve from the exposure curve, notice rst t