Answer
Coinsurance- When two or more entities take a combined Insurance cover, it is called the Coinsurance.
Example: Ship insured for USD 100 million:
- Insurer A: 40%
- Insurer B: 35%
- Insurer C: 25%
If there is a covered loss of USD 20 million, each insurer pays its agreed proportion.
Reinsurance- When the Insurer himself purchases a policy to cover his risks, that is called reinsurance.
An insurer transfers part of the risk it has accepted to another insurer, called the reinsurer.
Example:
- Shipowner insures vessel with Insurer A for USD 100 million.
- Insurer A keeps USD 20 million risk.
- Insurer A reinsures USD 80 million with one or more reinsurers.
If a loss occurs, the shipowner claims against Insurer A, not normally against the reinsurer. Insurer A then obtains reimbursement under its reinsurance contract.
Why reinsurance is requiredIt allows insurers and P&I Clubs to:
- accept very large marine risks,
- protect their financial capacity,
- spread catastrophic losses,
- stabilize claims experience,
- provide very high limits of cover.
For example, International Group P&I Clubs use pooling and collective reinsurance arrangements for very large claims.