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Rev Fin 1995; 8:579-603
© 1995 the Society for Financial Studies

Article

Consolidation, fragmentation, and the disclosure of trading information

A Madhavan
School of Business Administration, University of Southern California, Los Angeles, CA 90089-1421, USA

Abstract

It is commonly believed that fragmented security markets have a natural tendency to consolidate. This article examines this belief, focusing on the effect of disclosing trading information to market participants. We show that large traders who place multiple trades can benefit from the absence of trade disclosure in a fragmented market, as can dealers who face less price competition than in a unified market. Consequently, a fragmented market need not coalesce into a single market unless trade disclosure is mandatory. We also compare and contrast fragmented and consolidated markets. Fragmentation results in higher price volatility and violations of price efficiency.


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This article has been cited by other articles:


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