Fünf Jahre nach der Abschaffung der umfassenden Haftung für Landesbanken hat sich deren Lage deutlich verschärft. Dazu hat auch die internationale Finanzkrise beigetragen. Einzelne Landesbanken benötigten erhebliche Kapitalspritzen. Inzwischen ist klar, dass eine weitere Konsolidierung im...

We use high-frequency data to study the dynamic relationship between volatility and equity returns. We provide evidence on two alternative mechanisms of interaction between returns and volatilities: the leverage effect and the volatility feedback effect. The leverage hypothesis asserts that...

In moments of financial distress downside risk measures like lower partial moments are more appropriate than the standard variance to characterize risk. The goal of this paper is to study how to choose optimal portfolios in these periods. In order to do this we extend the definition of lower...

This paper develops a wavelet (spectral) approach to estimate the parameters of a linear regression model where the regressand and the regressors are persistent processes and contain a measurement error. We propose a wavelet filtering approach which does not require instruments and yields...

We develop a dynamic framework to identify aggregate market fears ahead of a major market crash through the skewness premium of European options. Our methodology is based on measuring the distribution of a skewness premium through a q-Gaussian density and a maximum entropy principle. Our...

Conventional time series analysis, focusing exclusively on a time series at a given scale, lacks the ability to explain the nature of the data generating process. A process equation that successfully explains daily price changes, for example, is unable to characterize the nature of hourly price...

There has recently been considerable interest in the potential adverse effects associated with excessive uncertainty in energy futures markets. Theoretical models of investment under uncertainty predict that increased uncertainty will tend to induce firms to delay investment. These models are...

This paper statistically tests the option theory of irreversible investment under uncertainty. Using contingent claims valuation, we derive the value of options to invest in capacity, where the projects are endogenous to the economic circumstances prevailing at the investment date. We then test...

Explanations of changes in asset prices as being due to exogenous changes in risk appetite assume that changes in asset prices due to changes in risk aversion can be uniquely identified, and that some quantitative measure can capture these in isolation. One such measure, the risk-appetite index,...

In this study, we use the newly developed momentum threshold unit root and cointegration tests advanced by Enders and Granger (1998), and Enders and Siklos (2001) to investigate if there is any asymmetric adjustment in long-run prices and dividends in Taiwan¡¦s stock market during June...