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Is there evidence of insider trading in Australian water markets?

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  • Simon de Bonviller
  • Alec Zuo
  • Sarah Ann Wheeler

Abstract

Insider trading is a much studied form of market manipulation in the financial market literature. However, studies addressing the issue of insider trading in resource markets, and in particular water markets, are rare. This study investigates the occurrence of insider trading practices around important water market allocation announcements in the Goulburn temporary water market trading zone in the Murray–Darling Basin, Australia, which is one of the largest and longest operating water market districts in the world. Nine years of daily water allocation volume and price transactions between 2008 and 2017 are modelled, with some evidence found of abnormal price movements in the 3 or 5 days preceding water allocation announcements, and especially before the introduction of insider trading rules in 2014. However, although the results do suggest some very weak statistically significant evidence that insider trading may still be present in Goulburn water markets post‐2014, it is just as feasible that our results may also reflect an increased sophistication of trader behaviour over time.

Suggested Citation

  • Simon de Bonviller & Alec Zuo & Sarah Ann Wheeler, 2019. "Is there evidence of insider trading in Australian water markets?," Australian Journal of Agricultural and Resource Economics, Australian Agricultural and Resource Economics Society, vol. 63(2), pages 307-327, April.
  • Handle: RePEc:bla:ajarec:v:63:y:2019:i:2:p:307-327
    DOI: 10.1111/1467-8489.12298
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    Cited by:

    1. Seidl, Constantin & Wheeler, Sarah Ann & Zuo, Alec, 2020. "High turbidity: Water valuation and accounting in the Murray-Darling Basin," Agricultural Water Management, Elsevier, vol. 230(C).
    2. Juliane Haensch & Sarah Ann Wheeler & Alec Zuo, 2021. "Explaining permanent and temporary water market trade patterns within local areas in the southern Murray–Darling Basin," Australian Journal of Agricultural and Resource Economics, Australian Agricultural and Resource Economics Society, vol. 65(2), pages 318-348, April.
    3. Ellen M. Bruno & Richard J. Sexton, 2020. "The Gains from Agricultural Groundwater Trade and the Potential for Market Power: Theory and Application," American Journal of Agricultural Economics, John Wiley & Sons, vol. 102(3), pages 884-910, May.
    4. Sarah Ann Wheeler, 2022. "Debunking Murray‐Darling Basin water trade myths," Australian Journal of Agricultural and Resource Economics, Australian Agricultural and Resource Economics Society, vol. 66(4), pages 797-821, October.
    5. Adam Loch & Christopher Auricht & David Adamson & Luis Mateo, 2021. "Markets, mis‐direction and motives: A factual analysis of hoarding and speculation in southern Murray–Darling Basin water markets," Australian Journal of Agricultural and Resource Economics, Australian Agricultural and Resource Economics Society, vol. 65(2), pages 291-317, April.

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