Reinsurance

Lore & Background

Reinsurance functions as a tool for insurers to manage risk and capital. By transferring a portion of underwriting risk to reinsurers in exchange for a premium, insurers can issue policies with higher limits than otherwise allowed. The structure of a reinsurance program varies with an insurer's business strategy, risk appetite, and cost of capital; some insurers may retain all risk. Reinsurance also makes an insurer's results more predictable by absorbing large losses, reducing the amount of capital needed to provide coverage. This income smoothing fosters stability in claim payouts and caps indemnification costs. Proportional treaties provide surplus relief, allowing the cedent to write more business or at larger limits. Arbitrage may motivate an insurer to purchase reinsurance at a lower rate than charged to the insured, due to the reinsurer's cost advantages, weaker regulation, favorable tax regimes, better underwriting expertise, or greater risk appetite. Reinsurers may also offer expertise in setting premiums for specialized risks, especially in facultative reinsurance.

Reader's Guide

Reinsurance is significant because it underpins the stability and capacity of the primary insurance market. By transferring risk, it allows insurers to underwrite more policies and offer higher limits than their own capital would permit. This risk transfer also smooths income by capping losses, making insurers' financial results more predictable and reducing the capital needed for coverage. Reinsurance enables surplus relief, allowing insurers to expand their business. The arbitrage function highlights how reinsurers can operate with cost or regulatory advantages, potentially offering lower premiums. The expertise of reinsurers in assessing specialized risks further supports the insurance ecosystem. Types of reinsurance include proportional arrangements (quota share and surplus share) and non-proportional arrangements (excess of loss and stop loss), each serving different risk management needs. Overall, reinsurance is a critical component of financial risk management, fostering a more balanced and profitable portfolio for insurers.

Did You Know?

• Reinsurance can make an insurance company's results more predictable by absorbing large losses.
• Proportional treaties provide surplus relief, enabling the cedent to write more business or at larger limits.
• Under non-proportional reinsurance, the reinsurer only pays if total claims exceed a stated retention or priority.
• Reinsurers may have cost advantages due to economies of scale, weaker regulation, or better access to underwriting expertise.