Regulation, Supervision and Consumer Protection

No industry is regulated as heavily as finance. A bank needs a charter before it can take a deposit. A broker needs registration before it can hold a client's shares. A payments company needs a licence in almost every US state before it can move a customer's money. A lender must disclose its prices in a prescribed format, cannot discriminate, and must collect debts within strict limits. Behind these rules sits a crowded set of supervisors. In the United States alone that means the Federal Reserve, the OCC, the FDIC, the SEC, the CFTC, the CFPB, FinCEN, fifty state banking departments and fifty state insurance commissioners. In the UK it means the PRA and the FCA, and in the euro area the ECB and a family of EU authorities. The rules exist because finance creates risks that markets do not price: runs that harm the whole economy, deposit insurance that invites risk-taking, information gaps between firms and customers, and a standing temptation to fraud. They also shape strategy more than almost anything else does. Licences are moats, compliance is a fixed cost that favours scale, and regulatory arbitrage has launched whole industries. This section maps the regulators and their tools, traces the laws that built the system, explains how supervision works in practice, covers consumer protection in depth, and follows the sharp change in US regulatory direction in 2025–26.