The incidence of systemic banking crises has risen over the past twenty years and the costs have been high. Although each country's experience has country-specific factors, several common elements appear in most crisis countries: (1) volatility in the macro economy; (2) the inheritance of structural weaknesses in the economy and financial system; (3) hazardous banking practices; (4) hazardous incentive structures and moral hazard within the financial system; (5) ineffective regulation; (6) weak monitoring and supervision by official agencies; (7) the absence of effective market discipline on banks, and (8) structurally unsound corporate governance mechanisms within banks and their borrowing customers. Causes of such crises are complex and a myopic focus on single factors (e. g. instability in the macro economy, weak regulation, etc.) misses the essential feature of interrelated and multidimensional causal factors. Although macro-instability has been a common feature, and may often have been the proximate cause, banking crises usually emerge because instability in the economy reveals existing weaknesses within the banking system.