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Effect of Transaction Tax on Market Efficiency, Volatility and Liquidity

  • Asset Management Review
  • Abbr : AMR
  • 2021, 9(1), pp.1~21
  • DOI : 10.23007/amr.2021.9.1.1
  • Publisher : Institute of Management Research, SungKyunKwan University
  • Research Area : Social Science > Business Management > Finance
  • Received : April 6, 2021
  • Accepted : May 23, 2021
  • Published : June 30, 2021

Mincheol Woo 1

1한국거래소

Accredited

ABSTRACT

Transaction taxes were introduced to reduce abnormal stock price movements and to reduce excessive volatility by suppressing noise traders' activities in the stock market. However, prior researches report that transaction taxes have unexpected side effects. This study analyzed the impact of transaction taxes on market efficiency and others in the case of Korea Post, which was exempted from securities transaction tax imposed during arbitrage, which is part of transaction tax. The main results are as follows. First, the transaction tax exemption improved market efficiency, but only showed significant results when the futures price was higher than the spot price. Second, the transaction tax exemption improved market stability by reducing the volatility of individual stocks and futures. Third, the exemption of transaction taxes contributed to the revitalization of the market by expanding liquidity in the spot and futures markets. This study is meaningful in that it included the KOSDAQ150 index and stock futures and analyzed by market situation between spot and futures.

Citation status

* References for papers published after 2023 are currently being built.