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Assignment 6 Part 1: Reinsurance Functions and Sources

What reinsurance is, why insurers need it, where it comes from, and the two fundamental delivery methods

Start Here: 5 Things You MUST Know

1

Reinsurance is insurance for insurance companies — a primary insurer (ceding company) transfers part of its risk to a reinsurer.

2

There are six functions of reinsurance: capacity, catastrophe protection, stabilization, surplus relief, facilitate withdrawal, and underwriting guidance.

3

Retrocession = when a reinsurer transfers risk to ANOTHER reinsurer. It is reinsurance of reinsurance.

4

Treaty = automatic, covers a class of business. Facultative = individual risk, negotiated one at a time.

5

Three sources of reinsurance: professional reinsurers, reinsurance departments of primary insurers, and pools/syndicates/associations.

Reinsurance Functions and Sources

Imagine you are an insurer and someone asks you to write a $50 million property policy on a skyscraper. Your company has $100 million in surplus. Writing that one policy would put half your entire net worth at risk on a single building. That is reckless. Instead, you keep $5 million of the risk and transfer $45 million to reinsurers. Now you have earned a nice premium while keeping your exposure manageable. That is reinsurance in action.

Exam Alert!

The six functions of reinsurance are heavily tested. Know each one and be able to match a scenario to the correct function. Also expect questions on treaty vs. facultative — the exam loves giving you a scenario and asking which method applies.

1. What Is Reinsurance?

Definition

Reinsurance is a transaction where a primary insurer (the ceding company) transfers some or all of the risk it has assumed to another insurer (the reinsurer). The policyholder typically has no idea this is happening — their contract is still with the primary insurer.

Plain English:

Think of it like a general contractor subcontracting work. You hire a contractor to build your house (the primary insurer). The contractor hires electricians and plumbers to do parts of the job (the reinsurers). You only deal with the contractor — you never even know the subcontractors exist. But if a problem arises, the contractor is still on the hook to you.

How Reinsurance Flows

Policyholder

Buys insurance policy

→

Ceding Company

Primary insurer

Keeps some risk

→

Reinsurer

Accepts ceded risk

Receives premium

→

Retrocessionaire

Reinsurer of reinsurer

(Retrocession)

Real-World Scenario: The Skyscraper Policy

The Setup: Acme Insurance has $100 million in surplus. A real estate developer asks Acme to insure a brand-new 40-story office tower for $50 million.

What Happens: Acme cannot put half its surplus at risk on one building. It writes the $50M policy but immediately cedes $45M of the risk to Munich Re (a professional reinsurer). Acme retains only $5M. It sends a portion of the premium to Munich Re along with the risk.

The Result: If the building suffers a $30M fire loss, Acme pays the developer $30M (it is still on the hook to the policyholder). Then Acme collects $27M from Munich Re (Munich Re's proportional share). Acme's net loss is only $3M. Without reinsurance, Acme would have eaten the entire $30M — a 30% hit to its surplus.

2. Key Reinsurance Terminology

Ceding Company

The primary insurer that transfers (cedes) risk to a reinsurer. Also called the "cedent" or "cedant."

Example: State Farm writes your homeowners policy. If State Farm cedes part of that risk to a reinsurer, State Farm is the ceding company.

Reinsurer

The insurer that accepts the transferred risk from the ceding company. Also called the "assuming company."

Example: Munich Re accepts $45M of the skyscraper risk from Acme. Munich Re is the reinsurer.

Retrocession

When a reinsurer transfers risk to ANOTHER reinsurer. The second reinsurer is the "retrocessionaire."

Example: Munich Re accepted $45M but decides that is too much. It retrocedes $20M to Lloyd's. Munich Re is now both a reinsurer AND a retrocedent.

Cession

The amount of risk (and associated premium) that is transferred to the reinsurer. This is the portion that gets "ceded."

Example: On the $50M skyscraper policy, the cession is $45M — that is the amount of risk Acme transferred to Munich Re.

Memory Trick: The Chain of Transfers

"Cede" sounds like "seed" — the ceding company plants the seed of risk in the reinsurer's garden. "Retro" means "back" or "again" — retrocession is doing the same thing again, one more level deep. Think of it as a relay race: the ceding company passes the baton to the reinsurer, who passes it again to the retrocessionaire.

3. Six Functions of Reinsurance

HIGHLY TESTABLE

Memorize all six functions. The exam will describe a scenario and ask which function of reinsurance is being illustrated.

Function 1: Increase Large-Line Capacity

What it means: Reinsurance allows an insurer to write policies with limits larger than its own surplus would safely allow. Without reinsurance, small and mid-size insurers could never compete for large commercial accounts.

Real-World Scenario: Small Insurer, Big Client

The Setup: Regional Mutual has $20M in surplus. A local factory needs $15M in property coverage.

What Happens: Without reinsurance, Regional Mutual would have to say no — a $15M loss would wipe out 75% of its surplus. With reinsurance, it keeps $3M and cedes $12M.

The Result: Regional Mutual writes the policy, earns premium, and keeps the client. Its maximum exposure is only $3M — a manageable 15% of surplus.

Function 2: Provide Catastrophe Protection

What it means: Reinsurance protects an insurer against a massive accumulation of losses from a single event — a hurricane, earthquake, wildfire, or terrorist attack that causes thousands of claims all at once.

Real-World Scenario: Hurricane Season

The Setup: Coastal Insurance Co. writes 50,000 homeowners policies in Florida with an average $300K limit.

What Happens: A Category 4 hurricane hits and 10,000 homes are damaged. Total claims reach $800M.

The Result: Coastal's catastrophe reinsurance kicks in above $50M. The reinsurer pays $750M. Without cat reinsurance, Coastal would be insolvent.

Function 3: Stabilize Loss Experience

What it means: Reinsurance smooths out year-to-year fluctuations in loss results. Instead of swinging between great years and terrible years, the insurer's results become more predictable.

Real-World Scenario: Rollercoaster Results

The Setup: Midwest Fire has loss ratios of 55%, 120%, 50%, 130% over four years — wildly unstable.

What Happens: By purchasing reinsurance that caps its losses per year, the reinsurer absorbs the spikes.

The Result: After reinsurance, Midwest Fire's net loss ratios become 55%, 70%, 50%, 70% — much more predictable. Investors and regulators are happier.

Function 4: Provide Surplus Relief

What it means: When an insurer writes a policy, it must set aside reserves. This reduces its surplus (net worth). The reinsurer pays a ceding commission to the primary insurer, which effectively puts money back into surplus. This is especially important for rapidly growing insurers whose surplus gets strained by writing lots of new business.

Real-World Scenario: Growing Too Fast

The Setup: StartUp Insurance is booming — premiums grew 40% this year. But every new policy requires reserves, and surplus is dropping fast.

What Happens: StartUp buys quota share reinsurance (cedes 30% of everything). The reinsurer pays a ceding commission of 35% of the ceded premium to cover StartUp's acquisition costs.

The Result: The ceding commission inflows improve StartUp's surplus. It can keep growing without violating regulatory capital requirements.

Function 5: Facilitate Withdrawal from a Market

What it means: When an insurer wants to exit a line of business or geographic area, it still has outstanding policies that could generate future claims. Reinsurance can transfer that remaining liability so the insurer can cleanly walk away.

Real-World Scenario: Exiting a Losing Market

The Setup: National Insurance has been writing medical malpractice in California for 15 years. Losses are terrible and it wants out.

What Happens: National stops writing new policies but still has 3,000 active policies with potential future claims. It enters a portfolio reinsurance agreement to transfer all remaining liabilities to a reinsurer.

The Result: National can close its California med-mal book and focus on profitable lines. The reinsurer handles all future claims from those policies.

Function 6: Provide Underwriting Guidance

What it means: Reinsurers have vast global experience across many markets and lines of business. They share their expertise on pricing, risk selection, policy wording, and emerging risks with ceding companies.

Real-World Scenario: Entering Cyber Insurance

The Setup: Hometown Mutual wants to start writing cyber liability policies but has zero experience pricing cyber risk.

What Happens: Their reinsurer (Swiss Re) provides pricing models, sample policy forms, loss data from other markets, and training for Hometown's underwriters.

The Result: Hometown launches a cyber product with confidence, backed by Swiss Re's global expertise. The reinsurer benefits because a well-priced book means fewer claims on the reinsured portion.

All Six Functions at a Glance

Function What It Does Key Word
Large-Line Capacity Write bigger policies than surplus alone allows SIZE
Catastrophe Protection Survive massive losses from one event DISASTER
Stabilize Losses Smooth out year-to-year fluctuations SMOOTH
Surplus Relief Ceding commission improves financial position MONEY
Facilitate Withdrawal Clean exit from a market or line EXIT
Underwriting Guidance Expert advice on pricing and risk selection ADVICE

4. Three Sources of Reinsurance

Professional Reinsurers

Companies whose primary business IS reinsurance. They do not sell policies to the public.

Examples: Munich Re, Swiss Re, Gen Re, RenaissanceRe, Hannover Re, SCOR

Key trait: Deepest expertise and largest capacity. They exist solely to reinsure.

Reinsurance Departments of Primary Insurers

Large primary insurers that also sell reinsurance as a secondary business through a dedicated department.

Examples: Berkshire Hathaway (writes direct AND reinsurance), AIG, Liberty Mutual

Key trait: Dual role — they understand both sides of the transaction.

Reinsurance Pools, Syndicates, and Associations

Groups of insurers that band together to share risk that no single company wants to handle alone.

Examples: Lloyd's syndicates, nuclear energy pools, terrorism risk pools (TRIA backstop)

Key trait: Strength in numbers. Useful for catastrophic or hard-to-place risks.

5. Treaty vs. Facultative Reinsurance

These are the two methods of delivering reinsurance. Think of it as the difference between buying in bulk (treaty) vs. buying one item at a time (facultative).

Treaty Reinsurance

A blanket agreement that automatically covers an entire class or book of business. Once the treaty is in place, individual risks flow through automatically — no negotiation needed per policy.

  • + Automatic — no delay in coverage
  • + Efficient — one agreement covers thousands of policies
  • + Lower administrative cost per policy
  • - Reinsurer must accept ALL qualifying risks (no cherry-picking)

Analogy: Treaty = wholesale. Like a standing order at a restaurant: "Send me 100 cases of chicken every week." You do not negotiate each case.

Facultative Reinsurance

Each risk is individually negotiated. The ceding company submits a specific risk, and the reinsurer can accept or decline it. Used for large, unusual, or hazardous risks.

  • + Reinsurer can evaluate each risk individually
  • + Used for risks that fall outside treaty limits
  • + Tailored terms and pricing per risk
  • - Slow — takes time to negotiate each placement
  • - Higher admin cost per risk

Analogy: Facultative = retail. Like going to a market and negotiating the price of each individual item. "How much for this one tuna?"

Feature Treaty Facultative
Scope Entire class of business Individual risk
Negotiation Once (at treaty inception) Per risk, every time
Speed Automatic, instant Days or weeks
Admin Cost Low per policy High per risk
Reinsurer Choice Must accept all qualifying risks Can accept or decline each risk
Best For Standard, high-volume business Large, unusual, or hazardous risks

Real-World Scenario: When Both Are Used Together

The Setup: Great Lakes Insurance has a treaty that automatically reinsures commercial property risks up to $10M per policy.

What Happens: A client needs $25M in coverage for a chemical plant — this exceeds the treaty limit. Great Lakes uses the treaty for the first $10M of reinsurance, then goes to the facultative market to place the remaining $15M with a specialist reinsurer.

The Result: The treaty handles the routine part automatically. The facultative placement (which takes a few days of negotiation) handles the excess. Most insurers use both methods.

Cheat Sheet

Print this page for quick reference

Key Terms

  • Ceding company = primary insurer that transfers risk
  • Reinsurer = company that accepts the risk
  • Cession = the amount transferred
  • Retrocession = reinsurer reinsuring with another reinsurer

6 Functions

  1. Increase large-line capacity
  2. Provide catastrophe protection
  3. Stabilize loss experience
  4. Provide surplus relief
  5. Facilitate withdrawal
  6. Provide underwriting guidance

Treaty vs. Facultative

  • Treaty = automatic, blanket, wholesale
  • Facultative = individual, negotiated, retail
  • Most insurers use BOTH

3 Sources

  • Professional reinsurers (Munich Re, Swiss Re)
  • Reinsurance depts. of primary insurers
  • Pools, syndicates, associations

Policyholder Relationship

  • Policyholder has NO contract with reinsurer
  • Primary insurer is ALWAYS on the hook to the policyholder
  • Reinsurance is invisible to the customer

Surplus Relief Mechanism

  • Writing policies reduces surplus (reserves)
  • Reinsurer pays ceding commission
  • Commission replenishes surplus
  • Critical for fast-growing insurers

Exam Trap Alerts

1. The Policyholder Has NO Relationship with the Reinsurer

If the reinsurer goes bankrupt, the ceding company still owes the policyholder the full claim. The policyholder cannot sue the reinsurer directly. The ceding company bears the credit risk of the reinsurer.

2. Treaty Reinsurers MUST Accept Qualifying Risks

Under a treaty, the reinsurer cannot cherry-pick. If a risk falls within the treaty terms, the reinsurer is obligated to accept it. Only facultative reinsurers can decline individual risks.

3. Retrocession Is NOT the Same as Reinsurance

The exam may try to confuse you. Reinsurance = primary insurer to reinsurer. Retrocession = reinsurer to another reinsurer. Same concept, but the terminology is different and they will test it.

4. Surplus Relief vs. Catastrophe Protection

Both improve financial health, but they work differently. Surplus relief is about the ceding commission improving the balance sheet. Catastrophe protection is about surviving a single massive event. If the scenario mentions "ceding commission" or "growing fast," it is surplus relief.

5. Stabilize Losses vs. Catastrophe Protection

These are often confused. Stabilization is about smoothing out year-to-year fluctuations (overall pattern). Catastrophe protection is about one massive event. If the scenario mentions "fluctuations" or "predictability" — it is stabilization. If it mentions "hurricane" or "one event" — it is catastrophe protection.

Quick Reference Summary

Reinsurance

Insurance for insurance companies. Ceding company transfers risk to reinsurer.

Ceding Company

The primary insurer that transfers (cedes) risk.

Retrocession

Reinsurer transferring risk to ANOTHER reinsurer.

6 Functions

Capacity, Cat Protection, Stabilization, Surplus Relief, Withdrawal, Guidance

Treaty

Automatic, blanket agreement covering a class of business.

Facultative

Individual risk, negotiated one at a time. Used for large/unusual risks.