国际货币基金组织：沙堡与金融体系：沙堆隐喻（英文版）

Social welfare costs from bank resolution, including contagion and moral hazard, are often thought to be minimized when supervisors can direct the merger of a failing bank with a sound, healthy one. However, social losses may become even larger if the absorbing institutions fail themselves. We ask whether social welfare losses are indeed lower when supervisors intervene rather than not. We use the sand pile/Abelian model as a metaphor to model financial losses which, as sand grains that fall