A new approach to portfolio analysis of financial market risks by random set tools is considered. Despite many attempts, the consistent and global modeling of financial markets remains an open problem. In particular it remains a challenge to find a simple and tractable economic and probabilistic...

This study aims to investigate the relationship of financial distress risk and the equity returns of financially distressed firms listed on Pakistan Stock Exchange (PSX). Several studies have suggested that firm distress risk factor could be behind the book-to-market and size effects. Fama and...

We introduce a dynamical model describing the interaction between a three-sectors real economy and a financial market with four assets. Investors and financial mediators have heterogeneous beliefs. The model may be used to investigate interdependence within economic fluctuations and assets...

An industry always expects to survive in profit maximization atmosphere. To develop profit maximization strategy it must follow scientific methods in every step of production and distribution. Only proper decisions can propel the industry smoothly in sustainable way. This study attempts to...

We propose two tests for the equality of covariance matrices between two high-dimensional populations. One test is on the whole variance-covariance matrices, and the other is on offdiagonal sub-matrices which define the covariance between two non-overlapping segments of the high-dimensional...

We propose two tests for the equality of covariance matrices between two high-dimensional populations. One test is on the whole variance-covariance matrices, and the other is on offdiagonal sub-matrices which define the covariance between two non-overlapping segments of the high-dimensional...

The relationship between risk and return is one of the most studied topics in finance. The majority of the literature is based on a linear, parametric relationship between expected returns and conditional volatility. However, there is no theoretical justification for the relationship to be...

In the Schumpeterian creative disruption age, the authors firmly believe that an increasing application of electronic technologies in the finances opens a big number of new unlimited opportunities toward a new era of the ultra high frequency electronic trading in the foreign currencies exchange...

In the Schumpeterian creative disruption age, the authors firmly believe that an increasing application of electronic technologies in the finances opens a big number of new unlimited opportunities toward a new era of the ultra high frequency electronic trading in the foreign currencies exchange...

We attempt to explain stock market dynamics in terms of the interaction among three variables: market price, investor opinion and information flow. We propose a framework for such interaction and apply it to build a model of stock market dynamics which we study both empirically and...