> So, what you're saying is they protect the value of a currency by devaluing it? A central banks job is to stabilize the currency and the relevant economy. Co

> So, what you're saying is they protect the value of a currency by devaluing it? A central banks job is to stabilize the currency and the relevant economy. Controlling liquidity and interest rates are two tools to affect this change. Side effects of which are controlling the rate of inflation. Stability is the key for a currency at global level. But don't take my word for it: "The Board of Governors of the Federal Reserve System and the Federal Open Market Committee shall maintain long run growth of the monetary and credit aggregates commensurate with the economy's long run potential to increase production, so as to promote effectively the goals of maximum employment, stable prices, and moderate long-term interest rates." https://www.federalreserve.gov/aboutthefed/section2a.htm https://www.federalreserve.gov/aboutthefed/section2a.htm