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An Intraday Pricing Model of Foreign Exchange Markets

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  • Rafael Romeu

Abstract

Market makers learn about asset values as they set intraday prices and absorb portfolio flows. Absorbing these flows causes inventory imbalances. Previous work has argued that market makers change prices to manage incoming flows and offset inventory imbalances. This study argues that they have multiple instruments, or ways to manage inventory imbalances and learn about evolving asset values. Hence, they smooth inventory levels and update prior information about assets using multiple instruments. In ignoring other instruments, previous studies have ignored the information that these provide and overemphasize the role of price changes in inventory management. The model presented here provides new estimates of asymmetric information and inventory effects, the price impact of each instrument, the cost of liquidity, and the impact of an intervention on these costs.

Suggested Citation

  • Rafael Romeu, 2003. "An Intraday Pricing Model of Foreign Exchange Markets," IMF Working Papers 2003/115, International Monetary Fund.
    • Handle: RePEc:imf:imfwpa:2003/115
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    Cited by:

    1. Rafael Romeu & Lawrence Ausubel, 2005. "Bidder Participation and Information in Currency Auctions," IMF Working Papers 2005/157, International Monetary Fund.
    2. Chen, Pei-wen & Huang, Han-ching & Su, Yong-chern, 2014. "The central bank in market efficiency: The case of Taiwan," Pacific-Basin Finance Journal, Elsevier, vol. 29(C), pages 239-260.
    3. Rafael Romeu, 2004. "A Puzzle of Microstructure Market Maker Models," IMF Working Papers 2004/006, International Monetary Fund.

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