What is the primary role of a central bank?

A central bank is a government institution that manages a country's money supply and financial system. Its primary roles include controlling interest rates, regulating commercial banks, managing currency stability, and implementing monetary policy. Central banks try to prevent inflation, maintain employment levels, and ensure economic stability. For example, the Federal Reserve controls the US dollar, while the European Central Bank manages the euro. This is relevant to crypto because central banks' decisions on interest rates and money printing directly influence whether investors seek alternative assets like Bitcoin and other cryptocurrencies.