Mean reversion, volatility persistence, long memory, time scales, stochastic volatility, GARCH, spurious long memory. - I discuss mean reversion in the first and the second moment of the return distribution. After a discussion of the concepts and a summary of the findings in the literature, I...

The present dissertationis devoted to the issue of price discovery in agricultural markets. Price discovery is considered one of the central functions of financial markets and is usually analyzed empirically for highly homogeneous assets traded on these markets. We investigate whether this...