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Foreign exchange market bid-ask spread and market power in an underdeveloped economy

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  • Khemraj, Tarron
  • Pasha, Sukrishnalall

Abstract

This paper explores the influence of trader (or cambio) market power in determining the foreign exchange market bid-ask spread. In particular, it presents a theoretical model that incorporates the notion of oligopolistic power into the foreign exchange market. The econometric analysis substantiates the existence of oligopolistic trader market power in determining the spread. Moreover, the results confirm the prediction of standard market microstructure theory that volatility exerts a positive effect on spread. We also uncovered a positive relationship between liquidity (the quantity of foreign exchange traded) and spread, a result which differs from the existing literature. We interpret this finding to mean that oligopolistic traders set the mark-up exchange rate above where the purely competitive rate would have been so as to generate a surplus of US$ that is then hoarded. The econometric exercise utilizes a unique data set of trading volumes and buying/selling exchange rates for each cambio from January 2000 to December 2007.

Suggested Citation

  • Khemraj, Tarron & Pasha, Sukrishnalall, 2008. "Foreign exchange market bid-ask spread and market power in an underdeveloped economy," MPRA Paper 11422, University Library of Munich, Germany.
    • Handle: RePEc:pra:mprapa:11422
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    File URL: https://mpra.ub.uni-muenchen.de/30989/2/MPRA_paper_30989.pdf
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    References listed on IDEAS

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    Cited by:

    1. Gurnain Kaur Pasricha, 2009. "Bank Competition and International Financial Integration:Evidence Using a New Index," Working Papers 242009, Hong Kong Institute for Monetary Research.

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    More about this item

    Keywords

    bid-ask spread; foreign exchange market; GLS;
    All these keywords.

    JEL classification:

    • O11 - Economic Development, Innovation, Technological Change, and Growth - - Economic Development - - - Macroeconomic Analyses of Economic Development
    • F00 - International Economics - - General - - - General
    • N16 - Economic History - - Macroeconomics and Monetary Economics; Industrial Structure; Growth; Fluctuations - - - Latin America; Caribbean
    • D43 - Microeconomics - - Market Structure, Pricing, and Design - - - Oligopoly and Other Forms of Market Imperfection

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