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The Bank of Japan’s exchange traded fund purchases: a help or hindrance to market efficiency?

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  • Ailie Charteris

    (University of Cape Town)

  • Conrad Alexander Steyn

    (University of Cape Town)

Abstract

We examine the impact of the Bank of Japan’s exchange traded fund (ETF) purchases on two aspects of market efficiency—long-range dependence and price delay—of the TOPIX and Nikkei 225 indices. An increase in ETF purchases results in lower long-range dependence for both indices while the impact on the price delay varies according to index and measure. A sub-period analysis shows that the impact on market efficiency varies over time, with the dominant pattern being a delayed harmful effect, followed by a positive impact and thereafter a negative effect. The implications of these findings are discussed.

Suggested Citation

  • Ailie Charteris & Conrad Alexander Steyn, 2023. "The Bank of Japan’s exchange traded fund purchases: a help or hindrance to market efficiency?," Journal of Asset Management, Palgrave Macmillan, vol. 24(3), pages 225-240, May.
    • Handle: RePEc:pal:assmgt:v:24:y:2023:i:3:d:10.1057_s41260-023-00307-2
    DOI: 10.1057/s41260-023-00307-2
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    More about this item

    Keywords

    Exchange traded funds; Market efficiency; Long-range dependence; Price delay; Monetary policy; Asset purchase programmes;
    All these keywords.

    JEL classification:

    • E52 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Monetary Policy
    • E58 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Central Banks and Their Policies
    • G10 - Financial Economics - - General Financial Markets - - - General (includes Measurement and Data)
    • G14 - Financial Economics - - General Financial Markets - - - Information and Market Efficiency; Event Studies; Insider Trading

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