We use a unique dataset of bond downgrades from a niche rating company that has been found to be reacting faster to publicly available information than its competitors. Using regime-switching models we propose risk measures to quantify stock return disturbances (distress costs) associated with...

This paper derives a universal approximation result for theminimum fuzzy implication rule as well as a differentiable substitute function that allows fast optimization and function approximation with neuro-fuzzy networks.

Over the past 15 years there has been remarkable progress in the specification and estimation of dynamic stochastic general equilibrium (DSGE) models. Central banks in developed and emerging market economies have become increasingly interested in their usefulness for policy analysis and...

This paper examines search with active learning and correlated information. We firstdevelop a simple model to show how correlation affects the decision to acquire information.A unique data set on fishing site choice by mid-Atlantic clam fishermen is used to test themodel predictions. Results...

In this paper, we consider an investor who plays in a market that involves a risky asset whose instantaneous rate of return changes at unknown random times. This return rate is assumed to follow the law of a Compound Poisson Process. We construct optimal mathematical strategies in this context...

In this paper we discuss the implementation of general one-factor short rate models with a trinomial tree. Taking the Hull-White model as a starting point, our contribution is threefold. First, we show how trees can be spanned using a set of general branching processes. Secondly, we improve...

This study uses an agent-based test bed (“AMES”)to investigate separation and volatility of locational marginalprices (LMPs) in an ISO-managed restructured wholesale powermarket operating over an AC transmission grid. Particular attentionis focused on the dynamic and cross-sectional response...

In April 2003 the U.S. Federal Energy Regulatory Commission proposed a complicated marketdesign – the Wholesale Power Market Platform (WPMP) – for common adoption byall U.S. wholesale power markets. Versions of the WPMP have been implemented in NewEngland, New York, the mid-Atlantic states,...

Taking location as given, we study imperfect competition on a circular city. In Bertrandoligopoly, we identify price harmonics as a function of firm unit costs and locations. The sumof oligopoly profits is larger when costs and/or locations are more dispersed in the ‘dihedralmajorization’...

Market concentration ratios are popular statistics for characterizing the extent of marketdominance in an imperfectly competitive market, but these ratios may not agree whencomparing two markets. Neither do they necessarily agree with the Herfindahl-Hirschman orentropy indices. This letter...