Price Improvements in Financial Markets as a Screening Device
In many security markets, market-makers offer to trade at a discount relative to their posted bid and ask quotes. In this article we provide an explanation to this phenomenon. We show that market-makers can mitigate informational asymmetries by selectively offering price improvements to their regular clients. We study a specific type of pricing strategy which consists (a) in offering price improvements to investors who have not repeatedly inflicted trading losses to the market-maker uses this pricing strategy, there are equilibria in which his clients optimally choose not to contact him when they have private information. These equilibria Pareto-dominate those which are obtained when the market-marker does not or can not make his quotes contingent on his clients' trading histories. Our Model predicts that (1) market-makers should grant price improvements to their regular clients but that (2) these improvements should be temporarily suspended after sequences of purchases (sales) followed by price increases (decreases).
(This abstract was borrowed from another version of this item.)
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- Erik Theissen, 2003.
"Trader Anonymity, Price Formation and Liquidity,"
Review of Finance,
European Finance Association, vol. 7(1), pages 1-26.
- Erik Theissen, 2002. "Trader Anonymity, Price Formation and Liquidity," Bonn Econ Discussion Papers bgse20_2002, University of Bonn, Germany.
- Seppi, Duane J, 1990. " Equilibrium Block Trading and Asymmetric Information," Journal of Finance, American Finance Association, vol. 45(1), pages 73-94, March.
- Petersen, Mitchell A. & Fialkowski, David, 1994. "Posted versus effective spreads *1: Good prices or bad quotes?," Journal of Financial Economics, Elsevier, vol. 35(3), pages 269-292, June.
- Matthew Rhodes-Kropf, 2005. "Price Improvement in Dealership Markets," The Journal of Business, University of Chicago Press, vol. 78(4), pages 1137-1172, July. Full references (including those not matched with items on IDEAS)