With the introduction of the accounting standards FAS 123 and IFRS 2 for executive stock options an important change towards fair value accounting' has taken place. As companies are now forced to value their stock options at grant date for accounting purposes, the robustness of prices against...

With the introduction of the accounting standards FAS 123 and IFRS 2 for executive stock options an important change towards quot;fair value accountingquot; has taken place. As companies are now forced to value their stock options at grant date for accounting purposes, the robustness of prices...

This study provides a rigorous empirical comparison of structural and reduced-formcredit risk frameworks. As major difference we focus on the discriminative modelingof the default time. In contrast to the previous literature, we calibrate both approaches to the same data set, apply comparable...

This paper analyzes the investment timing of firms facing two dimensions of financingconstraints: Liquidity constraints and capital market frictions inducing financing costs. We showthat liquidity constraints are not sufficient to explain voluntary investment delay. However, whenadditionally...

This paper investigates the dynamics of the term structure of bond market illiquidity premia using data on German bond market segments which differ only with respect to their liquidity. We analyze the interaction between different parts of the term structure and identify economic factors that...

We provide evidence of a strong effect of the underlying stock's illiquidity on option prices by showing that the average absolute difference between historical and implied volatility increases with stock illiquidity. This pattern translates into significant excess returns of option trading...

This paper investigates the dynamics of the term structure of bond market illiquidity premia using data on German bond market segments which differ only with respect to their liquidity. We analyze the interaction between different parts of the term structure and identify economic factors that...

We provide evidence of a strong effect of the underlying stock's illiquidity on option prices by showing that the average absolute difference between historical and implied volatility increases with stock illiquidity. This pattern translates into significant excess returns of option trading...

In this paper we extend an analysis by Lo and Wang (1995), who showed that predictability of asset returns affects derivatives prices through its impact on instantaneous volatility. We investigate how the whole instantaneous variance-covariance matrix of two assets returns is affected by typical...

The thesis studies index and equity option returns in perfect and imperfect markets to explain parts of the option mispricing puzzle. Perfect markets exist under informational efficiency, market completeness and frictionless trading. The thesis shows that an option-implied risk-adjusted approach...