Three types of proportional reinsurance are assessed: quota-share, surplus, and combination of quota-share and surplus. For illustrative purposes, the original reinsurance coverage and the no reinsurance case have been added to the table.
Under all types of reinsurance, the insurer retains
the same amount of risk (i.e., the sums of the retained sum insured values (∑SII) are equal under all reinsurance coverages).
RPS is the retained-premiums after reinsurance to retained-claims after reinsurance ratio; Retained Premiums–Retained Claims represents retained premiums after reinsurance premiums and claims.
The insurance retention ratios and reinsurancepremium ratios used in the risk–return analysis are summarized in Appendix B