We develop and simulate a basic mathematical model of the costly deployment of software patches in the presence of trade-offs between confidentiality and availability. The model incorporates representations of the key aspects of the system architecture, the managers’ preferences, and the...

Stochastic volatility models such as those of Heston [Rev. Financial Stud., 1993, 6(2), 327-343] and Hull and White [J. Finance, 1987, 42(2), 281-300] are often used to model volatility risk in the pricing and hedging of contingent claims on risky assets. Recent empirical evidence has shown that...

This paper addresses the impact of developments in the credit risk transfer market on the viability of a group of systemically important financial institutions. We propose a bank default risk model, in the vein of the classic Merton-type, which utilizes a multi-equation framework to model...

We document the changes in dynamic stochastic structure of the various industrial sectors of the Chinese A, B and the Hong Kong share markets. We utilize a robustly estimated vector error correction model with multivariate generalized autoregressive conditionally heteroscedasticity...

At the end of 2009, countries in the Eurozone (euro area) began to experience a sudden divergence of bond yields as the market perception of sovereign default risk increased. The theory of complete markets suggests that sovereign debt and credit default swap (CDS) credit spreads should track...

<Para ID="Par1">This paper addresses a core issue for the regulated utility: what are the risks taken by investors in companies that supply a product whose supply is regulated? Prior research on returns of regulated water supply and distribution companies concluded that regulation interacts significantly with...</para>