The euro zone (EZ) was created in January 1999. Its weak economic performance is significantly due to the euro’s neoliberal monetary architecture and the design of monetary policy. Those features undermine national political sovereignty and consign the EZ to severe economic under-performance, which in turn fosters political demands for exit from the euro. Escaping this dynamic requires restoring fiscal space to EZ countries, and also changing the design of EZ monetary policy. The paper shows how this can be done. It decomposes the challenge of reform into generic problems related to the neoliberal construction of monetary policy, and specific problems concerning the euro as a currency union. The currency union problems are further decomposed into money – fiscal policy architecture problems and specific monetary policy conduct problems.