Samuel Vaknin, The Belgian Curtain: Europe after Communism
“ A uniform exchange rate policy is only one of the concessions members of a monetary union must make. Joining always means giving up independent monetary policy and, with it, a sizeable slice of national sovereignty. Members relegate the regulation of their money supply, inflation, interest rates, and foreign exchange rates to a central monetary authority (e.g., the European Central Bank in the eurozone) .The need for central monetary management arises because, in economic theory, a currency is never just a currency. ”
