This Paper analyses the determinants of regulatory capital (the minimum required by regulation) and economic capital (the capital that shareholders would choose in absence of regulation) in the context of the single risk factor model that underlies the New Basel Capital Accord (Basel II). The...

This Paper presents a dynamic model of imperfect competition in banking where banks can invest in a prudent or a gambling asset. We show that if intermediation margins are small, the banks’ franchise values will be small, and in the absence of regulation only a gambling equilibrium will exist....

Banks’ behaviour can be influenced by both monetary policy and regulatory capital requirements. This paper explores the interaction between these two policy tools in promoting better lending decisions by banks. We develop and calibrate a model of bank lending to examine what an optimal...

Today’s regulatory rules, especially the easily-manipulated measures of regulatory capital, have led to costly bank failures. We design a robust regulatory system such that (i) bank losses are credibly borne by the private sector (ii) systemically important institutions cannot collapse...

We propose a new form of hybrid capital for banks, Equity Recourse Notes (ERNs), which ameliorate booms and busts by creating counter-cyclical incentives for banks to raise capital, and so encourage bank lending in bad times. They avoid the flaws of existing contingent convertible bonds...

We present a simple model of an economy with heterogeneous banks that may be funded with uninsured deposits and equity capital. Capital serves to ameliorate a moral hazard problem in the choice of risk. There is a fixed aggregate supply of bank capital, so the cost of capital is endogenous. A...

We analyze banks' systemic risk taking in a simple dynamic general equilibrium model. Banks collect funds from savers and make loans to firms. Banks are owned by risk-neutral bankers who provide the equity needed to comply with capital requirements. Bankers decide their (unobservable) exposure...

This article presents an application of extreme value theory to compute the value at risk of a market position. In statistics, extremes of a random process refer to the lowest observation (the minimum) and to the highest observation (the maximum) over a given time-period. Extreme value theory...

We analyze the cyclical effects of moving from risk-insensitive (Basel I) to risk-sensitive (Basel II) capital requirements in the context of a dynamic equilibrium model of relationship lending in which banks are unable to access the equity markets every period. Banks anticipate that shocks to...

This paper studies the strategic interaction between a bank whose deposits are randomly withdrawn, and a lender of last resort (LLR) that bases its decision on supervisory information on the quality of the bank’s assets. The bank is subject to a capital requirement and chooses the liquidity...