Im vorliegenden Aufsatz wird das geheimnisumwobene Berufsfeld des Online-Marketing-Managers empirisch untersucht. Darin werden Merkmale des Berufsbildes aus einer Befragung von Stelleninhabern und aus einer Stellenanzeigenanalyse hergeleitet. Aus beiden Untersuchungen ergeben sich ähnliche...

We study how the launching of a do-not-spam registry will affect the internet’s efficiency. We show that as long as the cost of sending spam messages is not high, having rich users (who have high-quality filters) join the registry has the desirable effect of lowering the number of spam...

We examine the problem of allocating a resource repeatedly over time amongst a set of agents. The utility that each agent derives from consumption of the item is private information to that agent and, prior to consumption may be unknown to that agent. The problem is motivated by keyword...

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...