Foundations

If you have just joined a reinsurer, or are considering it, this chapter is your orientation. Whether your background is in engineering, actuarial science, finance, or operations, the challenge is the same: reinsurance is a specialised domain with its own language and its own logic, and this site exists because the explanations we could find were written for people who already work in it.

This chapter assumes nothing beyond general technical maturity: no mathematics, no insurance vocabulary, no prior exposure to the industry. Every domain term is defined on first use and collected in the Glossary.

A fictional reinsurer, Caldera Re, appears in every chapter of this site. The Caldera Re appendix provides a full summary of the company, its portfolio, and the data behind every example.

The site’s scope (property-catastrophe reinsurance analytics, downstream of the catastrophe model) is stated on the home page, and the conventions the chapters introduce are indexed on one page, Scope, conventions & assumptions. This chapter is about the industry itself.

Chapter outline

The chapter follows the money along the risk transfer chain: from the policyholder whose house the hurricane hits, through the insurer that wrote the policy, to the reinsurer that protects the insurer, and on to the reinsurer’s own protection.

1. The market: What reinsurance is, how it evolved, and where it operates today
2. Market participants: Who does what, who pays whom, and how the market functions
3. Products and contracts: The financial instruments that transfer risk, at a conceptual level
4. Personas: The people who use analytics and what they care about

The central insight that connects Foundations to the rest of the site is that reinsurance is a capital allocation problem driven by tail risk and structured through contracts.

The Analytics Toolkit picks that sentence up and makes it measurable.