We modify the UPP test of Farrell and Shapiro (2010) to take into account the possibility that a merger weakens (or … eliminates) a vertical supply relationship. After deriving a general effect of the merger, we provide an example of simple …

a merger among them. We show that when manufacturers distribute their products through multi-product retailers, a … manufacturers merger, although it leads to an increase in the wholesale prices, it can enhance product variety. The merger generated … products to consumers, a merger never results into more product variety. Still, both in the presence and in the absence of …

This paper develops an elementary theory of global supply chains. We consider a world economy with an arbitrary number …

This paper analyzes dynamic cartel formation and antitrust enforcement when firms operate in demand-related markets. We … markets. We also consider policy implications of our analysis regarding an antitrust authority's investment decision in cartel …