The national financial system
The CMN and the central bank
4 min
At the top of the system sit the bodies that set monetary policy and guard the currency.
The CMN — the rule-maker
The Conselho Monetário Nacional (CMN) is Brazil's highest normative authority for the financial system. It does not deal with the public directly; instead it sets the broad policies — guidelines for the currency, credit, interest and the overall structure of the system. Think of it as the body that writes the high-level rulebook the regulators then enforce.
The central bank — the guardian of the currency
The Banco Central do Brasil (BCB) is the supervisory and executive arm for money and banking. Its core jobs, mirrored by central banks worldwide (the US Federal Reserve, the European Central Bank, and others), include:
- Conducting monetary policy — most visibly by setting the benchmark interest rate (in Brazil, the Selic) to keep inflation under control.
- Issuing currency and managing the money supply.
- Supervising banks to keep the banking system sound and depositors safe.
- Overseeing the payment system so transfers and settlements work reliably.
- Managing international reserves and acting in the currency market.
Why it matters to an investor
The central bank's interest-rate decisions ripple through everything you invest in: the return on fixed income, the attractiveness of stocks, the level of the exchange rate. Following the central bank is one of the most important habits a market participant can build — we return to this in the analysis tracks.
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