Digitisation processes have – often through disruptive innovations – injected additional competition in many markets, be it online retailing, new transport platforms, electronic banking and brokerage, online travel agencies or new media formats. At the same time, a number of companies,...

Given various recent antitrust investigations on the retail sector, we deal with uncovering demand systems substitution patterns for a particular market (diapers) to investigate the inter-format competition (supermarkets vs. discounters vs. drugstores). Using the uncovered demand system we...