The IMF Working Papers series is designed to make IMF staff research available to a wide audience. Almost 300 Working Papers are released each year, covering a wide range of theoretical and analytical topics, including balance of payments, monetary and fiscal issues, global liquidity, and national and international economic developments.
Large fiscal financing needs, both in advanced and emerging market economies, have often been met by borrowing heavily from domestic banks. As public debt approached sustainability limits in a number of countries, however, high bank exposure to sovereign risk created a fragile inter-dependence between fiscal and bank solvency. This paper presents a simple model of twin (sovereign and banking) crisis that stresses how this interdependence creates conditions conducive to a self-fulfilling crisis.