ZEW Discussion Papers

This paper evaluates the profitability of applying four different volatility forecastingmodels to the trading of straddles on the German stock market index DAX. Special carehas been taken to use simultaneous…

As the 20th Century dawned, there were radical divergences in the policies individual nations pursued toward restraints of competition by cartels and monopolies. Since World War II there has been considerable…

Im Rückgriff auf die Innovationsforschung wird ein Ansatz für eine gemeinsame Sprache und eine konsistente Systematik für Innovationen im Umweltbereich entwikkelt. Dazu werden einige allgemeine…

The influence of environmental policy on innovative behaviour of companies has so far recieved little attention in scientific discourse. Based on recent literature, the paper analyses the impact of requirements,…

In this article we examine how model selection in neural networks can be guided by statistical procedures such as hypotheses tests,information criteria and cross validation. The application of these methods in…

Various empirical studies have shown that the time-varying volatility of asset returns can be described by GARCH (generalised autoregressive conditional heteroskedasticity) models. The corresponding GARCH option…

Based on the data of the first wave of the Mannheim Innovation panel,this paper explores the link between R&D expenditures and patents. Ourdata allow a detailed analysis of the firm size distribution of R&Dand…

With the completion of the Uruguay Round of international trade negotiations, attention turns to plausible next steps. One question on the agenda of possibilities is the adoption of competition policies that…