I revisit the relation between aftermarket power and basic market competition. I consider an infinite period model with overlapping consumers: in each period, one consumer is born and joins one of the existing installed bases, then aftermarket payoffs are received by sellers and consumers, then...

We study uniform price auctions using a dataset that includes individual bidders' demand schedules in Finnish Treasury auctions during the period 1992-99. Average underpricing amounts to 0.041% of face value. Theory suggests that underpricing may result from monopsonistic market power. We...

Many bidders enter the Government of Canada securities auctions with short or long pre-auction inventory. We find that bidding strategies and auction performance vary with pre-auction ownership structure. Short and long bidders bid higher average prices and demand larger quantities than do...

Motivated by recent controversies surrounding the role of commercial lenders in microfinance, we analyze borrower welfare under different market structures, considering a benevolent non-profit lender, a for-profit monopolist, and a competitive credit market. To understand the magnitude of the...

In uniform auctions, buyers choose demand schedules as strategies and pay the same ‘market clearing’ price for units awarded. Despite the widespread use of these auctions, the extant theory shows that they are susceptible to arbitrarily large underpricing. We make a realistic modification to...

This paper empirically tests the effects of Anti-Dumping (AD) protection on the price-cost margin of firms. To this end, we use a rich panel data set of 1,666 EU producers that were involved in AD cases initiated in 1996. Our findings indicate that price-cost margins in most cases significantly...

We study the welfare implications of market power in a model where banks choose between credit rationing and monitoring in order to alleviate an underlying moral-hazard problem. We show that the effect of banks’ market power on social welfare is the result of two countervailing effects. On the...

We analyze the optimal dynamic policy of an antitrust authority towards horizontal mergers when merger proposals are endogenous and occur over time. Approving a currently proposed merger will affect the profitability and welfare effects of potential future mergers, the characteristics of which...

When is the modeller introducing more error when analysing a Cournot market with private cost information - when ignoring market power or when ignoring the impact of incomplete information? Is the welfare loss at the market outcome driven by private information or by market power? The answer,...

This Paper uses representative firm level panel data of 1,701 Bulgarian and 2,047 Romanian manufacturing firms to estimate market power (i.e. price-cost margins) and to analyse how these are affected by privatization and increased competitive pressure. In contrast to earlier work that analyses...