というNBER論文をスティグリッツらが上げている(昨年12月時点のFRBのWP)。原題は「Collective Moral Hazard and the Interbank Market」で、著者はLevent Altinoglu(FRB)、Joseph E. Stiglitz(コロンビア大)。 以下はその要旨。 The concentration of risk within the financial system leads to systemic instability. We propose a theory to explain the structure of the financial system and show how it alters the risk taking incentives of financial institutions when the gov