Insurance Operations and Organizational Structure
Core operating functions
Every insurer, whatever its legal form, runs a set of interlocking functions: product development, marketing and distribution, underwriting, policy administration, claims, actuarial, finance and accounting, investment, reinsurance, legal/compliance, and internal audit. The classic way to test this domain is to ask which function owns a decision. Underwriting selects and prices risk; policy administration issues, endorses, and renews; claims investigates and settles. A common trap is confusing distribution with underwriting authority-an agent or broker may solicit business but generally cannot bind coverage beyond a granted authority limit.
Structural choices
Insurers organize as stock companies (shareholder-owned), mutuals (policyholder-owned), reciprocals (subscribers exchange indemnity through an attorney-in-fact), Lloyd's-style syndicates, and fraternal benefit societies. Group structures add holding companies, which exist to deploy capital across subsidiaries and are regulated as insurance holding company systems with registration and periodic reporting requirements. Functional versus divisional versus matrix structures each trade specialization against coordination cost; questions often ask why a company centralizes claims but decentralizes underwriting (consistency and scale versus local market knowledge).
Governance and the three lines
The board sets risk appetite and oversees management; the audit committee oversees financial reporting and the internal audit function. The "three lines model" is heavily tested: operations own risk, risk/compliance functions monitor and advise, and internal audit provides independent assurance. A frequent trap is placing internal audit under the CFO-independence is destroyed.
Worked rule of thumb
When a question describes a conflict, ask: who owns the risk decision, who monitors it, and who assures it independently? If two of the three sit in one unit, the answer is almost always a governance defect. For example, a claims manager who also sets reserve adequacy for the same claims unit has a self-review problem; separating reserve review into actuarial or finance is the fix.