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Are tightened trading rules always bad? Evidence from the Chinese index futures market

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  • Hai Lin
  • You Wang

Abstract

This paper investigates the impact of tightened trading rules on the market efficiency and price discovery function of the Chinese stock index futures in 2015. The market efficiency and the price discovery of Chinese stock index futures do not deteriorate after these rule changes. Using variance ratio and spectral shape tests, we find that the Chinese index futures market becomes even more efficient after the tightened rules came into effect. Furthermore, by employing Schwarz and Szakmary [J. Futures Markets, 1994, 14(2), 147–167] and Hasbrouck [J. Finance, 1995, 50(4), 1175–1199] price discovery measures, we find that the price discovery function, to some extent, becomes better. This finding is consistent with Stein [J. Finance, 2009, 64(4), 1517–1548], who documents that regulations on leverage can be helpful in a bad market state, and Zhu [Rev. Financ. Stud., 2014, 27(3), 747–789.], who finds that price discovery can be improved with reduced liquidity. It also suggests that the new rules may effectively regulate the manipulation behaviour of the Chinese stock index futures market during a bad market state, and then positively affect its market efficiency and price discovery function.

Suggested Citation

  • Hai Lin & You Wang, 2018. "Are tightened trading rules always bad? Evidence from the Chinese index futures market," Quantitative Finance, Taylor & Francis Journals, vol. 18(9), pages 1453-1470, September.
  • Handle: RePEc:taf:quantf:v:18:y:2018:i:9:p:1453-1470
    DOI: 10.1080/14697688.2018.1445586
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    Cited by:

    1. Zhang, Xiaotao & Zhao, Yuepeng & Wang, Ziqiao, 2024. "Do loosened trading rules restore the stock index futures price discovery ability in China?," International Review of Economics & Finance, Elsevier, vol. 93(PB), pages 389-397.
    2. Wu, Lei & Zeng, Hongchao, 2019. "The impact of liquidity constraints on the cash-futures basis dynamics: Evidence from the Chinese market," Economic Modelling, Elsevier, vol. 83(C), pages 96-110.
    3. Jimmy E. Hilliard & Haoran Zhang, 2020. "The impact of soft intervention on the Chinese financial futures market," Journal of Futures Markets, John Wiley & Sons, Ltd., vol. 40(3), pages 374-391, March.
    4. Xingguo Luo & Doojin Ryu & Libin Tao & Chuxin Ye, 2024. "Price monotonicity violations during stock market crashes: Evidence from the SSE 50 ETF options market," Journal of Futures Markets, John Wiley & Sons, Ltd., vol. 44(3), pages 533-554, March.
    5. Fang, Ming & Chang, Chiu-Lan & Zhang, Qi, 2023. "Impacts of trading restrictions on price volatilities and speculative activities: Evidence from CSI 300 futures," Economic Analysis and Policy, Elsevier, vol. 79(C), pages 184-204.

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