An overview of international monetary policy arguing that a country should not have a monopoly over the money supply, rather different forms of payment should be allowed to compete within the economy with an established exchange rate e.g. pay with dollars, gold, or silver. Hayek also discusses some historical examples of Weimar Germany in the 1920s with the hyperinflation of the German currency and the French reign of terror with price controls and bans on money not officially approved by the government punishable by fines or imprisonment. An excellent primer on monetary policy, although written in the 1970s the principles are still relevant today and it provides a useful critique of the Bretton Woods monetary policy currently accepted internationally.