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The condition for when a price control increases consumer welfare in perfect competition is tighter than often realised.  When demand is linear, a small restriction on price only increases consumer surplus if the eleasticity of demand exceeds the elasticity of supply; with log-linear or...

A budget-constrained buyer wants to purchase items from a shortlisted set. Items are differentiated by quality and sellers have private reserve prices for their items. Sellers quote prices strategically, inducing a knapsack game. The buyer's problem is to select a subset of maximal quality. We...

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...

We present a new model of multi-product firms (MPFs) and flexible manufacturing and explore its implications in partial and general equilibrium. International trade integration affects the scale and scope of MPFs through a competition effect and a demand effect. We demonstrate how MPFs adjust in...

We analyze the time-series of prices in the Spanish electricity market by means of a time varying-transition-probabilities Markov Switching model. Accounting for demand and supply conditions, we show that the time-series of prices is characterized by two significantly different price levels....

In this paper we study how bargainers impact on markets in which firms set a list price to sell to those consumers who take prices as given. The list price acts as an outside option for the bargainers, so the higher the list price, the more the firms can extract from bargainers. We find that an...

We quantify externalities on profitability and market shares of competing firms in oligopolistic markets through the transition from an n to an n - 1 player oligopoly after a merger. Competitors are identified via the European Commission's market investigations and our methodology allows us to...

In this paper we study price competition between firms when some consumers attempt tobargain while others buy at the public list or posted prices. Even though bargainers succeed innegotiating discounts off the list prices, their presence dampens competitive pressure in the marketby reducing the...

We investigate the welfare impact of parallel imports using a large panel data set containing monthly information on sales, ex-factory prices, and further product characteristics for all 700 anti-diabetic drugs sold in Germany between 2004 and 2010. We estimate a two-stage nested logit model of...