As stated in the preamble of the founding Treaty of the European Economic Community (EEC) of 1957, the essential goal of European integration, is to improve the living and employment situation (usually measured in terms of per-capita GDP and unemployment rate) of EU citizens. From an economic...

Consider a stochastic frontier model with one-sided inefficiency u, and suppose that the scale of u depends on some variables (firm characteristics) z. A one-step model specifies both the stochastic frontier and the way in which u depends on z, and can be estimated in a single step, for example...

A major application of rescaled adjusted range analysis (RS analysis) is the study of price fluctuations in financial markets. There, the value of the Hurst constant, H, in a time series may be interpreted as an indicator of the irregularity of the price of a commodity, currency or similar...

Based on daily VDAX data this paper analyzes the factors governing the movements of implied volatilities of options on the German stock index DAX. Using Principal Components Analysis over the sample period from 1996 to 1997, we derive common factors representing shift and curvature of the term...

The analysis of volatility in financial markets has become a first rank issue in modern financial theory and practice: Whether in risk management, portfolio hedging, or option pricing, we need to have a precise notion of the market's expectation of volatility. Much research has been done on the...

In this paper we investigate the profitability of ?skewness trades? and ?kurtosis trades? based on comparisons of implied state price densities versus historical densities. In particular, we examine the ability of SPD comparisons to detect structural breaks in the options market behaviour. While...

Durch das Interesse deutscher Unternehmen an einer weltweit einheitlichen Aktie hat sich in letzter Zeit eine Umstellung auf die Namensaktie durchgesetzt. Diese Entwicklung beruht einerseits auf der Verbesserung des Abwicklungssystems CASCADE RS der Clearstream Banking AG, Frankfurt am Main...

This paper analyses annual, age-specific retirement rates in Germany between 1971 and 1991. The time-series data show significant changes in overall and age-specific retirement behavior over the 21 year period. The literature provides two alternative explanations for the observed developments:...