Briefing Paper: The Interdependence of Fiscal and Monetary Policy under Economic and Monetary Union

This article explores the implications of Economic and Monetary Union (EMU) for the conduct of fiscal policy. Under EMU, where the European Central Bank is successful in controlling inflation, the loss of seigniorage revenues causes a potential problem for public sector deficits. To prevent the debt‐income ratio from spiralling upwards, a primary budget surplus is ultimately required. EMU has usually been considered as a strong central monetary authority which forces fiscal discipline on lax national governments. But this is not the only possibility. Because the debt ratio can be reduced by surprise inflation, the price expectations of the private sector are important. Once these are taken into account, EMU can be examined in a ‘game’ framework in which the reputation of the authorities and the existence or otherwise of cooperation between the fiscal and monetary authorities becomes a critical factor. The paper finds that where the authorities enjoy reputation and cooperate, a one‐off reduction in public spending will lead to a permanent decline in the real interest rate and crowd in extra private spending (consumption and investment). Without reputation the cut in government spending has to be sustained. Where there is neither reputation nor cooperation, the outcome depends on the structure of the European economy and whether fiscal policy can effect the terms of trade between countries. If the terms of trade remain unchanged, the outturn is similar to the case of cooperation without reputation, but where the terms of trade can be improved in one country, there is no incentive to cut public spending. In this case the outturn is higher inflation with private spending crowded out.