We investigate the impact of options listings on the variance of the underlyingstock returns in the Swiss equity market using a non-parametric approach.The emergence of multiple share categories in most Swiss firms,combined with the fact that (listed) options are typically not introduced onall...

Using symmetric data sets of 92 weekly return observations before and after the introduction of the euro, the paper analyzes the impact of the new currency on the return structure of equity markets in the European Monetary Union. Variance decompositions, cluster analyses, and principle component...