December 10, 2014
Market structure and pricing
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On the Importance of Sales for Aggregate Price Flexibility
Macroeconomists have traditionally ignored the behavior of temporary price markdowns (“sales”) by retailers. Although sales are common in the micro price data, they are assumed to be unrelated to macroeconomic phenomena and generally filtered out. -
High-Frequency Trading Competition
We analyze trading dynamics as successive high-frequency trading (HFT) firms begin to trade stocks in an equity market. Entrants compete with incumbents for volume, and there is crowding out. -
Uncertain Costs and Vertical Differentiation in an Insurance Duopoly
Classical oligopoly models predict that firms differentiate vertically as a way of softening price competition, but some metrics suggest very little quality differentiation in the U.S. auto insurance market.