The multiple-choice nested knapsack problem (MCKP) is a generalization of the ordinary knapsack problem, where the set of items is partitioned into classes. The binary choice of selecting an item is replaced by taking exactly one item out of each class of items. Due to the fact that the MCKP is...

In the German automobile industry the vertical integration, as an indicator of value added, is on average low. Beyond the argument of relative high labour costs for manufacturing, several specific reasons for the level of vertical integration, linked to the flexibility of business administration...

We provide a simple model to investigate decisions on vertical integration/separation. The key feature of this model is that more than one input is required for the final products of the local downstream monopolists. Depending on their cost structure, downstream firms' decisions on vertical...

The paper explores incentives for strategic vertical separation of firms in a framework of a simple duopoly model. Each firm chooses either to be a retailer of its own good (vertical integration) or to sell its good through an independent exclusive retailer (vertical separation). In the latter...

Computerbesitzer kombinieren Komplementärguter zu einem Computersystem. Mit dem Computersystem möchten sie Daten mit anderen Nachfragern und zwischen verschiedenen Applikationen austauschen. Aus diesen Interdependenzen ergeben sich drei verschiedene Netzwerkeffekte, die im Rahmen eines...

Regulating seaports is difficult in general, even more so for the weak regulatory institutions common in developing countries. For this reason some countries have awarded these facilities via Demsetz auctions, to the port operator that bids the lowest cargo-handling fee. A major concern with...

Der vorliegende Beitrag zeigt, dass die Festlegung der Fertigungstiefe in der Gegenstromplanung von Strategien kein stringentes Instrument der Unternehmensführung ist. Die Top-Down und Bottom-Up Analyse über die hierarchischen Ebenen der Unternehmens-, Wettbewerbs- und Funktionalstrategie...

In this work we discuss the impact of the new ICT techno-economic paradigm upon the vertical and horizontal boundaries of the firm and ask whether the change in the sources of competitive advantage has resulted in changes in the size distribution of firms and also in the degree of concentration...

We provide a theoretical framework to discuss the relation between market size and vertical structure in the railway industry. The framework is based on a simple downstream monopoly model with two input suppliers, labor forces and the rail infrastructure firm. The operation of the downstream...

Obwohl technischer Fortschritt die Basis der Wohlstandsentwicklung unserer Gesellschaft bildet, ist der Terminus „Agrarstrukturwandel“ in der politischen Diskussion negativ belegt. Ein Grund ist, dass struktureller Wandel nicht notwendigerweise zum Vorteil für alle Beteiligten führt,...