There is a literature emerging that suggests that a Eurozone nation would be no better off with its own currency then and is within the monetary union. The claim is that these nations have not performed any worse than nations outside the Eurozone during the current crisis. A recent paper by an American economist (Andrew Rose) – Surprising Similarities: Recent Monetary Regimes of Small Economies – is being used as the authority to support this claim. The intent is clear – to deny that the Eurozone as a monetary system is inferior to systems where the nation issues its own currency and sets its own interest rates. However, these studies skate over the currency sovereignty issue and cast the differences between nations in terms of exchange rate arrangements or whether their central bank targets inflation or not. The real issue is whether the monetary system is characterised by the government facing a financial constraint or not in its spending – that is, whether it issues its own currency, sets its own interest rates and resists issuing debt in a foreign currency. Once you consider those basic aspects of the monetary system then it becomes obvious that the Eurozone nations as a whole have performed worse than other advanced Non-Eurozone nations which have enjoyed more fiscal flexibility.