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Mobile device use and the ranking effect on trading behavior: Evidence from natural experiments

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  • Wu, Haibo
  • Wu, Chongfeng

Abstract

This paper investigates how the trading behavior of investors using mobile devices differs from that of investors using PCs in the context of limited attention. We hypothesize that mobile device-based trading is associated with a stronger “ranking effect” that investors disproportionally trade top-ranked stocks. By exploiting the exogeneity of the return-based ranking of price limit events, we examine the ranking effect on retail investors' buying behavior and find supportive evidence that (1) based on the absolute returns of price limit events, top-ranked stocks are more heavily bought than the lower ranks by investors using mobile devices, while there is no significant ranking effect for investors using PCs; and (2) the ranking effect is enhanced with the increase of the number of contemporaneous price limit events.

Suggested Citation

  • Wu, Haibo & Wu, Chongfeng, 2024. "Mobile device use and the ranking effect on trading behavior: Evidence from natural experiments," Pacific-Basin Finance Journal, Elsevier, vol. 85(C).
    • Handle: RePEc:eee:pacfin:v:85:y:2024:i:c:s0927538x24000684
    DOI: 10.1016/j.pacfin.2024.102317
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    More about this item

    Keywords

    Mobile technology; Screen size; Ranking effect; Limited attention; Price limit events;
    All these keywords.

    JEL classification:

    • G11 - Financial Economics - - General Financial Markets - - - Portfolio Choice; Investment Decisions
    • G14 - Financial Economics - - General Financial Markets - - - Information and Market Efficiency; Event Studies; Insider Trading
    • O33 - Economic Development, Innovation, Technological Change, and Growth - - Innovation; Research and Development; Technological Change; Intellectual Property Rights - - - Technological Change: Choices and Consequences; Diffusion Processes

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