4th Quarter (2007)

Thomas S. Y. Ho and Blessing Mudavanhu This paper presents a one-factor and a two-factor arbitrage-free interest rate models with parsimonious implied volatility functions. The models are empirically tested on the entire swaption surface in three currencies (US dollar, Euro, and Japanese yen) over a 5-year period. They are shown to be robust in explaining… Read more

Jochen R. Andritzky and Manmohan Singh Credit default swaps (CDS) provide the buyer with insurance against certain types of credit events by entitling him to exchange any of the bonds permitted as deliverable against their par value. Unlike bonds, whose risk spreads are assumed to be the product of default risk and loss rate, CDS… Read more

Amir E. Khandani and Andrew W. Lo During the week of August 6, 2007, a number of quantitative long/short equity hedge funds experienced unprecedented losses. Based on TASS hedge-fund data and simulations of a specific long/short equity strategy, we hypothesize that the losses were initiated by the rapid “unwind” of one or more sizable quantitative… Read more

Dale F. Gray, Robert C. Merton and Zvi Bodie This paper proposes a new approach to measure, analyze, and manage sovereign risk based on the theory and practice of modern contingent claims analysis (CCA). The paper provides a new framework for adapting the CCA model to the sovereign balance sheet in a way that can… Read more