To reach a definitive conclusion for whether Britain would have improved its trade, FDI and exchange rates by joining the Eurozone is certainly challenging with the vast number of external factors contributing to Britain's Financial position over the past 15 years. This question stems from Britain's decision not to join the European Monetary Union (EMU) that was based on five economic tests set by the Treasury under Gordon Brown's Chancellorship. This publish sets out to answer whether Britain were right not to join the Eurozone.