Eine Welle von Fusionen hat die Weltwirtschaft erfasst. Allein die Dimension der bei Großfusionen genannten Summen, die nicht selten das Bruttoinlandsprodukt von Volkswirtschaften übersteigen, führen zu einem erheblichen Maß an Verunsicherung. Dies wird auch in den Überschriften von...

Business groups in emerging markets perform better than unaffiliated firms. One explanation is that business groups substitute some functions of missing institutions, for example, enforcing contracts. We investigate this by setting up a model where firms within the business group are connected...

Within the last three years, Google has acquired YouTube and DoubleClick and has attempted to control part of Yahoo!'s search advertising business. Two of the deals have not raised antitrust concerns by competition authorities. I review these deals with a focus on consumer welfare. Consumers are...

We show that for a spatially differentiated economy reduced product variety is the likely outcome of mergers except in cases where exit costs in relation to (outlet-specific) fixed costs are high. Our empirical analysis of the Austrian retail gasoline market confirms that increases in...