The recent crisis underlined that proper estimation of distress-dependence amongst banks in a global system is essential for financial stability assessment. We present a set of banking stability measures embedding banks’ linear (correlation) and nonlinear distress-dependence, and their changes...

The regulation of bank capital in the form of capital adequacy requirements is itself inherently procyclical; it bites in downturns, but fails to restrain in booms. The more risk-sensitive the regulation, the greater the scope for pro-cyclicality to become a problem, particularly in view of the...

The estimation of the profit and loss distribution of a loan portfolio requires the modelling of the portfolio’s multivariate distribution. This describes the joint likelihood of changes in the credit-risk quality of the loans that make up the portfolio. A significant problem for portfolio...

This paper presents the Conditional Probability of Default (CoPoD) methodology for modelling the probabilities of loan defaults (PoDs) by small and medium size enterprises (SMEs) and unlisted firms as functions of identifiable macroeconomic and financial variables. The process of modelling PoDs...

The concept of risk-based capital requirements enjoys widespread support. Effective implementation, however, requires that risk be measured accurately both across borrowers and across time. Under the New Capital Accord, the cornerstone of this risk measurement process is the rating of the...

Almost all economists know the story about the (drunk) person searching for his lost wallet in the night under the lamp-post, not because that was the most likely place to have dropped his wallet, but because that was where the light was. I shall argue here that this story is fitting in the case...

This paper extends the model proposed by Goodhart, Sunirand, and Tsomocos (2003, 2004a, b) to an infinite horizon setting. Thus, we are able to assess how the model conforms with the time series data of the U.K. banking system. We conclude that, since the model performs satisfactorily, it can be...

We show, in an exchange economy with default, liquidity constraints and no aggregate uncertainty, that state prices in a complete markets general equilibrium are a function of the supply of liquidity by the Central Bank. Our model is derived along the lines of Dubey and Geanakoplos (1992). Two...

Our purpose in this paper is to produce a tractable model which illuminates problems relating to individual bank behaviour and risk-taking, to possible contagious interrelationships between banks, and to the appropriate design of prudential requirements and incentives to limit ‘excessive’...

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