Using the Algo FIRST operational risk database, this paper computes the cost of operational risk loss insurance for a sample of banks over a 1-year horizon. The estimated cost of 1-year operational risk loss insurance for an average bank is 1.24% as a percentage of firm value on December 31,...

Jensen's alpha is well-known to be a measure of abnormal performance in the evaluation of securities and portfolios where abnormal performance is defined to be an expected return that exceeds the equilibrium risk adjusted rate. It is also well known that in estimating Jensen's alpha, a non-zero...

This paper studies asset price bubbles in a continuous time model using the local martingale framework. Providing careful definitions of the asset's market and fundamental price, we characterize all possible price bubbles in an incomplete market satisfying the "no free lunch with vanishing risk...

This paper explores a one-period model for a firm that finances its operations through debt provided by heterogeneous creditors. Creditors differ in their beliefs about the firm's investment outcomes. We show the existence of Stackelberg equilibria in which the firm holds cash reserves in order...

This article reviews the theoretical literature on asset price bubbles, with an emphasis on the martingale theory of bubbles. The key questions studied are as follows: First, under what conditions can asset price bubbles exist in an economy? Second, if bubbles exist, what are the implications...

This paper develops a new model for studying foreign currency exchange rate bubbles. The model constructed is a modification of the Martingale-based bubble approach of Jarrow, Protter, and Shimbo [12], [13]. This model generates some new insights into our understanding of exchange rate bubbles...

This paper reviews the term structure of interest rates literature relating to the arbitrage-free pricing and hedging of interest rate derivatives. Term structure theory is emphasized. Topics included are the HJM model, forward and futures contracts, the expectations hypothesis, and the pricing...

This paper reviews the literature on credit risk models. Topics included are structural and reduced form models, incomplete information, credit derivatives, and default contagion. It is argued that reduced form models and not structural models are appropriate for the pricing and hedging of...