Firms often give away free goods with the product that they sell. Firms often give stock options to their top management and other employees. Mixing these two practices-giving stock options to consumers who buy the firm's product-, creates a deadly brew. Large numbers of consumers can be lured...

Positive effects of employee participation on organizational performance are closely linked to the implementation of a specific corporate culture always referred to as 'ownership culture'. This issue can be stimulated through employee share purchase plans (ESPP). This article will investigate...

In this paper we 'update' the option implied probability of default (option iPoD) approach recently suggested in the literature. First, a numerically more stable objective function for the estimation of the risk neutral density is derived whose integrals can be solved analytically. Second, it is...

In this paper we will be estimating risk-neutral densities (RND) for the largest euro area stock market (the index of which is the German DAX), reporting their statistical properties, and evaluating their forecasting performance. We have applied an innovative test procedure to a new, rich, and...

Several studies indicate that stock option plans are becoming more and more a substantial part of compensation schemes in U.S. companies. This paper shows the tax implications and accounting rules for stock option plans. By comparison of the tax and accounting rules for different compensation...

Residual income valuation is based on the assumption that the clean surplus relation holds. As pointed out by Ohlson (2000), among others, the standard clean surplus relation is frequently violated. Moreover, standard residual income valuation models rest on the implicit assumption that future...

We present a closed pricing formula for European options under the Black-Scholes model and formulas for its partial derivatives. The formulas are developed making use of Taylor series expansions and by expressing the spatial derivatives as expectations under special measures, as in Carr,...

Seit einigen Jahren setzen auch deutsche Unternehmen zunehmend Aktienoptionen als *" Entlohnungsinstrument ein. Wie werden Aktienoptionen gegenwärtig steuerlich behandelt? Besteht im Zuge der Steuerreform ein steuerpolitischer Handlungsbedarf?

The volatility information content of stock options for individual firms is measured using option prices for 149 U.S. firms and the S&P 100 index. ARCH and regression models are used to compare volatility forecasts defined by historical stock returns, at-the-money implied volatilities and...