Why it is used
It allows the cedant to retain more of smaller risks while gaining capacity for larger sums insured.
Reinsurance Intelligence · Proportional treaty
All conceptsThe insurer keeps a fixed line and cedes amounts above it in a variable number of lines, subject to treaty capacity.
Why it is used
It allows the cedant to retain more of smaller risks while gaining capacity for larger sums insured.
Illustrative example
With a one-line retention and four-line treaty, the ceded share grows as the insured value exceeds the retained line.