Jan Beran is a Professor of Statistics at the University of Konstanz (Department of Mathematics and Statistics). After completing his PhD in Mathematics at the ETH Zurich, he worked at several U.S. universities and the University of Zurich. He has a broad range of interests, from long-memory processes and asymptotic theory to applications in finance, biology and musicology. Yuanhua Feng is a Professor of Econometrics at the University of Paderborn’s Department of Economics. He previously worked at the Heriot-Watt University, UK, after completing his PhD and postdoctoral studies at the University of Konstanz. His research interests include financial econometrics, time series and semiparametric modeling. Hartmut Hebbel is a Professor (emeritus) of Empirical Economic Research at the University of the Federal Armed Forces in Hamburg, Germany. He studied Mathematics at the Technische Universität Berlin and previously worked at different German universities after receiving his PhD and German PD in Statistics from the University of Dortmund. His research interests include space and time series analysis and applications of statistical methods in the natural and environmental sciences.