Diese Dissertation (dt.: Einbeziehung von Modellunsicherheit in das Selektionsproblem von Schätzern für erwartete Renditen) beschäftigt sich mit der Unsicherheit aus einer Vielzahl verfügbarer Schätzer für latente erwartete Renditen den korrekten Schätzer auszuwählen. Anhand des...

This dissertation focuses on monetary policy rules in the OECD countries at both theoretical and empirical levels. It is divided into seven chapters.Chapter 1 presents some recent literature on monetary policy rules and introduces the goal and organization of this dissertation.Chapter 2 explores...

While the market for credit instruments grew continuously in the decade before 2008, its liquidity has dried up significantly in the current crisis, and investors have become aware of the possible consequences of being exposed to credit risk. In this thesis we address these issues by pricing...

Diese Doktorarbeit untersucht drei Fragestellungen. Erstens, wie die Wirkung von plötzlichen Änderungen exogener Faktoren auf endogene Variablen empirisch im Allgemeinen zu bestimmen ist. Zweitens, welche Effekte eine Erhöhung der Staatsausgaben im Speziellen hat. Drittens, wie optimale...

Electricity price forecasting is an important task for electricity market participants since the very beginning of the deregulation. Accurate forecasting is essential for designing bidding strategy, risk management, and market operation. However, due to the compli-cated factors affecting...

In this dissertation, I explore the impact of idiosyncratic risk on asset returns. The first essay examines how idiosyncratic risk affects the cross-section of stock returns. I use an exponential GARCH model to forecast expected idiosyncratic volatility and employ a combination of the size...

The launch of financial reforms in Central and Eastern Europe (CEE) at the beginning of the 1990s stimulated increased interest of investors and academics in the newly-born stock markets of this region. Most of the existing studies, however, consider a group of the CEE markets, stressing their...

This thesis will be concerned with investigating the empirical characteristics of stock returns,forUKfirms which are distinguished by market value. The primary aimof thisworkis to identifywhether there are differences between the behaviour of large and small firm retums.A substantial amount of...

This thesis examines the links between economic time-series innovations and statisticalrisk factors in the UK stock market using principal components analysis (PCA) and thegeneral-to-specific (Gets) approach to econometric modelling.A multi-factor risk structure for the UK stock market is...