Does the internet increase competition? To address this question, I exploit two institutional details unique to Germany: (1) Some municipalities received glass fibre cables that cannot be upgraded to DSL; I use these municipalities as a treatment group with reduced online competition. (2) German...

This paper examines retail grocery price levels with a very large (unbalanced) panel of stores that operate in well-defined local markets. We explain price variation across grocery retailers by the concentration of wholesalers and retailers, and the market share of hypermarkets (and control for...

This paper investigates the effects of mergers, entry, and exit in retail markets when input prices are negotiated. Results are derived from a model of bilateral Nash-bargaining between manufacturers and retailers which allows for general forms of demand and retail competition. Whether...

Does the internet increase competition? To address this question, I exploit two institutional details unique to Germany: (1) Some municipalities received glass fibre cables that cannot be upgraded to DSL; I use these municipalities as a treatment group with reduced online competition. (2) German...

We consider a model of vertical competition where downstream firms (retailers) purchase an upstream input from a monopolist and are able to differentiate from each other in terms of quality. Our primary focus is to study the effects of introducing a large retailer, such as a Wal-Mart...

This Supplemental Material includes, among other things, the analytical derivatives of the price-cost margins of manufacturers determined via the "Nash-in-Nash" bargaining solution, the computation of the out-of-equilibrium retail prices following a bargaining breakdown, the algorithm used to...

This paper investigates the effects of changes in retail market concentration when input prices are negotiated. Results are derived from a model of bilateral Nash-bargaining between upstream and downstream firms which allows for general forms of demand and retail competition. Whether...

This paper investigates the effects of changes in retail market concentration when input prices are negotiated. Results are derived from a model of bilateral Nash-bargaining between upstream and downstream firms which allows for general forms of demand and retail competition. Whether...

The digital revolution of pricing enables retailers to change their prices more frequently than ever before. While the industry endorses this development, critics fear it could foster excessive price fluctuations. This paper studies price fluctuations in the context of brick-and-mortar retailing...

We develop a framework of bilateral oligopoly with a sequential two-stage game in which manufacturers engage in bilateral bargains with retailers competing on a downstream market. We show that bargaining outcomes depend on three different bargaining forces and can be interpreted in terms of...