Frequently asked questions about central banks, monetary policy, and interest rates — with live data
Data as of May 15, 2026This FAQ is designed to answer the most common questions about how central banks work, what interest rates do, and why monetary policy moves markets. No prior background in economics or finance is assumed. Begin with "What is a central bank and what does it do?" and work down — the questions build on each other. For deeper dives, follow the links to individual central bank pages and methodology explainers.
This FAQ assumes familiarity with monetary policy fundamentals — the dual mandate, the transmission mechanism, the distinction between conventional and unconventional tools. For advanced topics including DSGE reaction-function estimation, term-premium decompositions, Phillips curve specification, and policy-rule robustness under model uncertainty, see the methodology page and the Taylor Rule explainer. Live data on policy rates and meeting probabilities reflects the same pipeline used elsewhere on the site.
Real-time policy rates for all major central banks — updated daily.