Due to the recent progress of communication tools and the globalization of the world economy and information space, our physical lives, economical existences, and information fields are becoming more and more interrelated. Many processes that were successfully modelled in the past by probability and statistical methods assuming independent behavior of the components are becoming more and more intertwined. Brownian motion and Newtonian mechanics are still utilized, but they often fail to serve as good models for many complicated systems with component interactions. This explains an...