Die rapide Entwicklung neuer Technologien fordert etablierte Unternehmen heraus, ihre Innovationsprozesse kontinuierlich und agil anzupassen. In den letzten Jahren hat die Kollaboration zwischen Startups und Grossunternehmen zur gemeinsamen Entwicklung neuer Service- oder Produktinnovationen...

The PhD studies different empirical methods to detect bid-rigging cartels. It shows first that simple statistical screens perform very well to detect bid-rigging infringement. Second, the econometric method of Bajari, well established in the literature, produces poor results.

Modern Portfolio Theory (MPT) provides an elegant mathematical framework for the efficient portfolio allocation problem. Despite its exceptional popularity, MPT poses a number of well-documented problems in practical applications. Especially the fact that it generates notoriously extreme and...