Security Bid/Ask Dynamics with Discreteness and Clustering: Simple Strategies for Modeling and Estimation
43 Pages Posted: 7 Nov 2008
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Security Bid/Ask Dynamics with Discreteness and Clustering: Simple Strategies for Modeling and Estimation
Date Written: October 1998
Abstract
This paper proposes a dynamic model of bid and ask quotes that incorporates a stochastic cost of market-making, discreteness (restriction of quotes to a fixed grid) and clustering (the tendency ofquotes to lie on â¬Snaturalâ¬? multiples of the tick size). The Gibbs sampler provides a convenient vehicle for estimation. The model is estimated for daily and intradaily US Dollar/Deutschemark Reuters quotes.
Keywords: Quotes, foreign exchange, Gibbs sampler, Markov chain Monte Carlo, discreteness, clustering, security prices
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