This paper studies the economic foundations for maximum leverage ratio capital adequacy rules. The paper makes three contributions to the literature. First, we show how to determine the maximum leverage ratio such that the probability of insolvency is less than some predetermined quantity. Two,...

This paper seeks to understand the interplay between banks, bank regulation, sovereign default risk and central bank guarantees in a monetary union. I assume that banks can use sovereign bonds for repurchase agreements with a common central bank, and that their sovereign partially backs up any...

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...

Should policy makers be permitted to intervene during a financial crisis by bailing out financial institutions and their investors? We study this question in a model that incorporates two competing views about the underlying causes of these crises: self-fulfilling shifts in investors'...

This article develops a model that studies how the presence of a lender of last resort (LOLR) affects the ex ante investment incentives of banks. We show that a perfectly informed LOLR induces a first-best outcome for small and medium sized banks but causes moral hazard in larger banks given the...

This article extends the application of global games of Goldstein and Pauzner (2005) in the banking model of Diamond and Dybvig (1983) to account for correlation in the quality of banks’ long term investment, when banks are linked through cross deposits and there is a central bank. The goal is...

The present study investigates theoretically the lending responses of government-owned and private banks in the event of unexpected financial shocks. Our model predicts that public banks provide more loans to the real sector during times of crisis, compared to private banks which cut down on...

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 a global game, I show that creditor bailins, when well-designed, can attain the exact same level of bank stability as costly creditor bailouts. This result holds for both risk-averse and risk-neutral creditors. Because bailouts are costly but do not necessarily provide a stability advantage,...

This paper seeks to inform about a feature of monetary policy that is largely overlooked, yet occupies a central role in modern monetary and financial systems, namely central bank collateral frameworks. Their importance can be understood by the observation that the money at the core of these...