Neben den klassischen Performancemaßen, wie der Sharpe-Ratio, der Treynor-Ratio und dem Jensen-Alpha wurden in den letzten Jahrzehnten weiterführende Ansätze für die Analyse und Bewertung von Kapitalanlagen entwickelt. Die moderneren Performancemaße verlangen keine Konstanz der Risikomaße...

This paper shows how to introduce liquidity into the well known mean-variance framework of portfolio selection. Either by estimating mean-variance liquidity constrained frontiers or directly estimating optimal portfolios for alternative levels of risk aversion and preference for liquidity, we...

A kereskedelmi bankok nyereséges működését leginkább veszélyeztető kockázattípus a hitelkockázat, amely nagyon leegyszerűsítve abból fakad, hogy az adósok nem teljesítik a bankkal szemben fennálló kötelezettségeiket. Egy esetleges nem teljesítési esemény következtében a...

We develop a multivariate generalization of the Markov-switching GARCH model introduced by Haas, Mittnik, and Paolella (2004b) and derive its fourth-moment structure. An application to international stock markets illustrates the relevance of accounting for volatility regimes from both a...

An asymmetric multivariate generalization of the recently proposed class of normal mixture GARCH models is developed. Issues of parametrization and estimation are discussed. Conditions for covariance stationarity and the existence of the fourth moment are derived, and expressions for the dynamic...

We study the time diversification issue in the context of the optimal asset allocation of an executive with decreasing relative risk aversion preferences, who is granted a package of European stock options. The asset menu for his unrestricted wealth includes both market portfolio and money account.

This study is an investigation of the factors affecting the average returns of stocks that were traded on the Athens Stock Exchange for the period July 2004 - June 2011. The methodological approach is similar to that applied by Fama and French (1992), in the first stage, stocks are grouped into...

Sparked by the recent great recession and the role of financial markets, considerable interest exists among researchers within both the academic and public community in measuring and modeling systemic risk. This article introduces a new framework for measuring systemic risk by using a...

Correlations of equity securities have varied substantially over time and remain a source of continuing policy debate. This paper studies stock market correlations in an equilibrium model with heterogeneous risk aversion. In the model, preference heterogeneity causes countercyclical variations...

This paper explores how the fearful market-based sentiment indicators affect investor trading behavior and market liquidity. Our results show that a high degree of fearful market-based sentiment induces more sell orders along with a reduction in market liquidity, and vice versa. In addition,...