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Price Formation in the OTC Corporate Bond Markets: A Field Study of the Inter-Dealer Market

Authors: Saunders, Anthony
Srinivasan, Anand
Walter, Ingo
Issue Date: Oct-1998
Series/Report no.: FIN-98-089
Abstract: This is the first exploratory field study of the U.S. inter-dealer OTC corporate bond market. We do this by analyzing the trades of a major bond dealer and through interviews with personnel at the trading desk of this dealer. We document the competitive structure of the market in terms of the number of active dealers, the mechanism used to facilitate trades etc. We find that the mechanism of trading closely resembles a first price sealed bid auction. The number of active dealers is quite small - only 9 dealers account for a large fraction of the trades. We examine potential differences between different segments of the market. We develop a measure of competition for this bidding market based on the theory of auctions. This is the difference between the best and second best bid in a given trade. Our measure of competition indicates that competition is highest in US investment grade corporate bonds and lowest in junk bonds. We also examine the effect of size of the trade on this measure of competition. Surprisingly, large trades do not suffer from any adverse market impact. Lastly, we examine the effect of exclusion of individual bidders on the level of competition. The effect does not appear very large.
Appears in Collections:Finance Working Papers

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