The recent crisis was characterized by massive illiquidity. This paper reviews what we know and don't know about illiquidity and all its friends: market freezes, fire sales, contagion, and ultimately insolvencies and bailouts. It first explains why liquidity cannot easily be apprehended through...

We study the relative strengths and weaknesses of principles based and rules based systems of regulation. In the principles based systems there is clarity about the regulatory objectives but the process of reverse-engineer these objectives into meaningful compliance at the firm level is...

This article (i) iterates what is meant by credit risks and the mathematical/statistical modelling thereof, (ii) elaborates the conceptual and technical links between credit risk modelling and capital adequacy framework for financial institutions, particularly as per the New Capital Accord...

The recent crisis was characterized by massive illiquidity. This paper reviews what we know and don't know about illiquidity and all its friends: market freezes, fire sales, contagion, and ultimately insolvencies and bailouts. It first explains why liquidity cannot easily be apprehended through...

Intro -- Contents -- I. INTRODUCTION -- II. THE BASIC MODEL SETTING -- III. MODEL 1: A SIMPLE MODEL WITH NON-RANDOM DEFAULT PROBABILITIES -- IV. INTRODUCING THE POISSON APPROXIMATION -- V. MODEL 2: THE MODEL WITH KNOWN PROBABILITIES REVISITED -- VI. MODEL 3: THE MODEL WITH RANDOM DEFAULT...