We propose a new theory of systemic risk based on Knightian uncertainty (or "ambiguity"). We show that, due to uncertainty aversion, beliefs on future asset returns are endogenous, and bad news on one asset class induces investors to be more pessimistic about other asset classes as well. This...

We study daily money market mutual fund flows at the individual share class level during the crisis of September 2008. The empirical approach that we apply to this fine granularity of data brings new insights into the investor and portfolio holding characteristics that are conducive to run-risk...

This Paper analyses the effects on ex ante risk-shifting incentives and ex post fiscal costs of three policies that are frequently used in dealing with banking crises, namely, forbearance from prudential regulations, extension of blanket deposit guarantees, and provision of unrestricted...

In an economy à la Diamond and Dybvig (1983), we present an example in which foreign lenders find it profitable to invest in an emerging market if, and only if, the emerging market government imposes taxes on short-term capital inflows. This implies that capital controls that are effective in...

This Paper considers how an international lender of last resort can prevent self-fulfilling banking and currency crises in emerging economies. We compare two different arrangements: one in which the international lender of last resort injects international liquidity into financial markets, and...

We present a simple model where bank runs are possible and we analyse the role of subsidization of future investment in this setting. We find that such a policy exacerbates the short-run liquidity problem for banks. Moreover, we highlight that a ‘shift in expectations’ about the keeping of...

The provision of liquidity by international institutions such as the IMF to countries experiencing balance of payment problems could prevent liquidity runs but could also cause moral hazard distortions: expecting to be bailed out by the IMF, debtor countries would have weak incentives to...

Does demand for safety create instability ? Secured (repo) funding can be made so safe that it never runs, but shifts risk to unsecured creditors. We show that this triggers more frequent runs by unsecured creditors, even in the absence of fundamental risk. This effect is separate from the...

This paper distinguishes between two kinds of Endogenous Business Cycle models, and discusses the evolution from first generation EBC1 models to second generation EBC2 models. I argue that EBC1 models, which display dynamic indeterminacy, are part of the evolution of modern macroeconomics that...