Dewenter, Ralf; Rösch, Jürgen; Terschüren, Anna - Fächergruppe Volkswirtschaftslehre, Helmut Schmidt … - 2014
Google is supposed to be the dominant player in most search markets around the world. But what is a search market? To calculate a market share of 90% or more, it has to be clear what the denominator is: Does the search market also include product search and therefore Amazon and eBay or the...