IDEAS home Printed from https://ideas.repec.org/a/taf/applec/44y2012i23p2935-2944.html
   My bibliography  Save this article

Which way does water flow? An econometric analysis of the global price integration of water stocks

Author

Listed:
  • Eduardo Roca
  • Gurudeo Anand Tularam

Abstract

Around US$600 billion of investment is desperately needed to address forecasted huge shortages in water supply globally. A number of worldwide investors -- so-called water funds -- have started to take up this challenge. For these global water investors, knowledge about the extent of integration between the water sectors of financial markets is highly important. According to international portfolio diversification theory, the less (more) integrated markets are, the more (less) benefits there are from international diversification. In this study, we investigate the extent and manner of interdependence among the US, European and Asian water sector of the equity markets based on Vector Autoregression (VAR), Granger causality and impulse response analyses. We find that world water stock market prices are indeed significantly interdependent although this interdependence varies across time periods. Each market quickly responds to shocks from each other and completes its response within 3 days. Hence, for water investors, international diversification that is undertaken just within the water sector will not be beneficial. The result also implies that there is the risk of crossmarket contagion -- that is, price volatility spill over across water sectors of different financial markets, and therefore, water authorities in one market should take cognisance of events in other markets.

Suggested Citation

  • Eduardo Roca & Gurudeo Anand Tularam, 2012. "Which way does water flow? An econometric analysis of the global price integration of water stocks," Applied Economics, Taylor & Francis Journals, vol. 44(23), pages 2935-2944, August.
  • Handle: RePEc:taf:applec:44:y:2012:i:23:p:2935-2944
    DOI: 10.1080/00036846.2011.568403
    as

    Download full text from publisher

    File URL: http://hdl.handle.net/10.1080/00036846.2011.568403
    Download Restriction: Access to full text is restricted to subscribers.

    As the access to this document is restricted, you may want to search for a different version of it.

    References listed on IDEAS

    as
    1. Eduardo Roca, 1999. "Short-term and long-term price linkages between the equity markets of Australia and its major trading partners," Applied Financial Economics, Taylor & Francis Journals, vol. 9(5), pages 501-511.
    2. Sims, Christopher A, 1980. "Macroeconomics and Reality," Econometrica, Econometric Society, vol. 48(1), pages 1-48, January.
    3. Robert-Paul Berben & W. Jos Jansen, 2009. "Bond market and stock market integration in Europe: a smooth transition approach," Applied Economics, Taylor & Francis Journals, vol. 41(24), pages 3067-3080.
    4. Engle, Robert & Granger, Clive, 2015. "Co-integration and error correction: Representation, estimation, and testing," Applied Econometrics, Publishing House "SINERGIA PRESS", vol. 39(3), pages 106-135.
    5. Theodore Syriopoulos, 2004. "International portfolio diversification to Central European stock markets," Applied Financial Economics, Taylor & Francis Journals, vol. 14(17), pages 1253-1268.
    6. Granger, C W J, 1969. "Investigating Causal Relations by Econometric Models and Cross-Spectral Methods," Econometrica, Econometric Society, vol. 37(3), pages 424-438, July.
    7. Abdulnasser Hatemi-J & Eduardo D. Roca, 2007. "Equity market price interdependence based on bootstrap causality tests: evidence from Australia and its major trading partners," Applied Financial Economics, Taylor & Francis Journals, vol. 17(10), pages 827-835.
    8. Ekaterini Panopoulou & Theologos Pantelidis, 2009. "Integration at a cost: evidence from volatility impulse response functions," Applied Financial Economics, Taylor & Francis Journals, vol. 19(11), pages 917-933.
    9. Ralf Brüggemann & Wolfgang Härdle & Julius Mungo & Carsten Trenkler, 2008. "VAR Modeling for Dynamic Loadings Driving Volatility Strings," Journal of Financial Econometrics, Society for Financial Econometrics, vol. 6(3), pages 361-381, Summer.
    10. Pesaran, H. Hashem & Shin, Yongcheol, 1998. "Generalized impulse response analysis in linear multivariate models," Economics Letters, Elsevier, vol. 58(1), pages 17-29, January.
    11. Click, Reid W. & Plummer, Michael G., 2005. "Stock market integration in ASEAN after the Asian financial crisis," Journal of Asian Economics, Elsevier, vol. 16(1), pages 5-28, February.
    12. Henrique Monteiro, 2005. "Water Pricing Models: a survey," Others 0510002, University Library of Munich, Germany.
    13. Javier Calatrava & Alberto Garrido, 2005. "Modelling water markets under uncertain water supply," European Review of Agricultural Economics, Foundation for the European Review of Agricultural Economics, vol. 32(2), pages 119-142, June.
    14. Z. Wang & J. Yang & D. A. Bessler, 2003. "Financial crisis and African stock market integration," Applied Economics Letters, Taylor & Francis Journals, vol. 10(9), pages 527-533.
    15. A. Tahai & Robert Rutledge & Khondkar Karim, 2004. "An examination of financial integration for the group of seven (G7) industrialized countries using an I( ) cointegration model," Applied Financial Economics, Taylor & Francis Journals, vol. 14(5), pages 327-335.
    Full references (including those not matched with items on IDEAS)

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Gurudeo Anand Tularam & Rajibur Reza, 2016. "Water exchange traded funds: A study on idiosyncratic risk using Markov switching analysis," Cogent Economics & Finance, Taylor & Francis Journals, vol. 4(1), pages 1139437-113, December.

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:taf:applec:44:y:2012:i:23:p:2935-2944. See general information about how to correct material in RePEc.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Chris Longhurst). General contact details of provider: http://www.tandfonline.com/RAEC20 .

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service hosted by the Research Division of the Federal Reserve Bank of St. Louis . RePEc uses bibliographic data supplied by the respective publishers.