Econometrica: Nov 2012, Volume 80, Issue 6
Valuing Dealers' Informational Advantage: A Study of Canadian Treasury Auctions
Ali Hortaçsu, Jakub KastlIn many financial markets, dealers have the advantage of observing the orders of their customers. To quantify the economic benefit that dealers derive from this advantage, we study detailed data from Canadian Treasury auctions, where dealers observe customer bids while preparing their own bids. In this setting, dealers can use information on customer bids to learn about (i) , that is, the distribution of competing bids in the auction, and (ii) , that is, the ex post value of the security being auctioned. We devise formal hypothesis tests for both sources of informational advantage. In our data, we do not find evidence that dealers are learning about fundamentals. We find that the “information about competition” contained in customer bids accounts for 13–27% of dealers' expected profits.
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