Reducing fixed cost duplication - a common justification for concentrated market structure - motivated the US government to relax the number of radio stations a firm could operate in any local market. After deregulation the number of firms per market decreased. The implied cost saving depends on...

This paper evaluates alternative strategic models of competition and market structure in online retailing, and makes comparisons with traditional retailing. Online consumers are less concerned than traditional consumers about spatial characteristics and more concerned about hidden quality...

This paper develops an asymmetric price setting oligopoly model of store opening and closure decisions in the UK supermarket industry which is estimated using a survey of consumer choices and a dataset of store characteristics. The model is used to examine the strategic local entry and exit...

It is often claimed that large buyers wield buyer power.  Existing theories of this effect generally assume upstream monopoly.  Yet the evidence is strongest with upstream competition.  We show that upstream competition can yield buyer power for large buyers by generating supplier-level...

This paper surveys new research concerning bargaining within supply chains and its implications for buyer power.  The paper explores the implications of the research on supermarket supply chains for primary, secondary and private-label branded goods.  The empirical base in support of the...