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Did the Reform Fix the London Fix Problem?

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  • Takatoshi Ito
  • Masahiro Yamada

Abstract

This paper examines the consequences of the 2015 reform on the London fixing in the interbank forex market, which resulted from finding and imposing a penalty on banks’ collusive behavior around the fixing window. The banks changed their behavior after the reform, and the volume spike in the fixing window disappeared. However, the anomalies on price dynamics reported in the previous literature still exist, and banks’ passive trading strategy generates another predictability in the price movement. A theoretical model of optimal execution is used to calibrate the execution of fixing transactions by banks, and evaluate the increase in the cost and risks of fixing trades incurred by the banks' behavior. This paper is the first to examine the efficiency of banks’ behavior after the reform. The volume pattern during the fixing time window suggests that banks, by avoiding (even the appearance of) collusion, now incur the costs of executing customers’ orders.

Suggested Citation

  • Takatoshi Ito & Masahiro Yamada, 2017. "Did the Reform Fix the London Fix Problem?," NBER Working Papers 23327, National Bureau of Economic Research, Inc.
    • Handle: RePEc:nbr:nberwo:23327
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    References listed on IDEAS

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    1. Melvin, Michael & Prins, John, 2015. "Equity hedging and exchange rates at the London 4p.m. fix," Journal of Financial Markets, Elsevier, vol. 22(C), pages 50-72.
    2. Obizhaeva, Anna A. & Wang, Jiang, 2013. "Optimal trading strategy and supply/demand dynamics," Journal of Financial Markets, Elsevier, vol. 16(1), pages 1-32.
    3. Ito, Takatoshi & Yamada, Masahiro, 2017. "Puzzles in the Tokyo fixing in the forex market: Order imbalances and Bank pricing," Journal of International Economics, Elsevier, vol. 109(C), pages 214-234.
    4. Carol Osler & Alasdair Turnbull, 2016. "Dealer Trading at the Fix," Working Papers 101R, Brandeis University, Department of Economics and International Business School, revised Jun 2017.
    5. Alain P. Chaboud & Sergey V. Chernenko & Edward Howorka & Raj S. Krishnasami Iyer & David Liu & Jonathan H. Wright, 2004. "The high-frequency effects of U.S. macroeconomic data releases on prices and trading activity in the global interdealer foreign exchange market," International Finance Discussion Papers 823, Board of Governors of the Federal Reserve System (U.S.).
    6. Martin Evans, 2014. "Forex Trading and the WMR Fix," Working Papers gueconwpa~14-14-03, Georgetown University, Department of Economics.
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    Cited by:

    1. Melvin, Michael & Pan, Wenqiang & Wikstrom, Petra, 2020. "Retaining alpha: The effect of trade size and rebalancing frequency on FX strategy returns," Journal of Financial Markets, Elsevier, vol. 51(C).
    2. Marjolein E. Verhulst & Philippe Debie & Stephan Hageboeck & Joost M. E. Pennings & Cornelis Gardebroek & Axel Naumann & Paul van Leeuwen & Andres A. Trujillo‐Barrera & Lorenzo Moneta, 2021. "When two worlds collide: Using particle physics tools to visualize the limit order book," Journal of Futures Markets, John Wiley & Sons, Ltd., vol. 41(11), pages 1715-1734, November.
    3. Nuria Boot & Timo Klein & Maarten Pieter Schinkel, 2017. "Collusive Benchmark Rates Fixing," Tinbergen Institute Discussion Papers 17-122/VII, Tinbergen Institute, revised 17 Apr 2019.
    4. Nuria Boot & Timo Klein & Maarten Pieter Schinkel, 2017. "Collusive Benchmark Rates Fixing," Discussion Papers of DIW Berlin 1715, DIW Berlin, German Institute for Economic Research.

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    More about this item

    JEL classification:

    • D43 - Microeconomics - - Market Structure, Pricing, and Design - - - Oligopoly and Other Forms of Market Imperfection
    • D47 - Microeconomics - - Market Structure, Pricing, and Design - - - Market Design
    • F30 - International Economics - - International Finance - - - General
    • F31 - International Economics - - International Finance - - - Foreign Exchange
    • F33 - International Economics - - International Finance - - - International Monetary Arrangements and Institutions
    • G12 - Financial Economics - - General Financial Markets - - - Asset Pricing; Trading Volume; Bond Interest Rates
    • G15 - Financial Economics - - General Financial Markets - - - International Financial Markets

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