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Investigating the Reciprocal Relationships Within Health Virtual Communities

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Author Info

  • Zhechao (Charles) Liu

    (University of Texas at San Antonio)

  • Nima Kordzadeh

    (University of Texas at San Antonio)

  • Yoris A. Au

    (University of Texas at San Antonio)

  • Jan G. Clark

    (University of Texas at San Antonio)

Registered author(s):

    Abstract

    This paper attempts to shed light on the puzzling finding that the results of applying the conventional or nonlinear unit root tests to the yen real exchange rates (RERs) in some recent studies appear to be rather sensitive to whether or not including the data of recent decade in the studies. It is found that this sensitivity of the test results may come from the failure to take into account the large rise and fall in the yen RERs. Using the newly developed unit root tests which account for the presence of multiple smooth temporary breaks in the RERs, the results clearly show that the yen RERs in the post-Bretton Woods period can be characterized as being linear or nonlinear stationary around infrequent smooth temporary mean changes, supporting the validity of PPP.

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    File URL: http://business.utsa.edu/wps/is/0007IS-673-2012.pdf
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    Bibliographic Info

    Paper provided by College of Business, University of Texas at San Antonio in its series Working Papers with number 0007.

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    Length: 11 pages
    Date of creation:
    Date of revision:
    Handle: RePEc:tsa:wpaper:0007

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    Related research

    Keywords: Health virtual communities; online social networks; user participation; reciprocity; homophily.;

    References

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    1. Giulio Cifarelli & Giovanna Paladino, 2008. "Oil price Dynamics and Speculation. A Multivariate Financial Approach," Working Papers - Economics wp2008_15.rdf, Universita' degli Studi di Firenze, Dipartimento di Scienze per l'Economia e l'Impresa.
    2. Sentana, Enrique & Wadhwani, Sushil B, 1992. "Feedback Traders and Stock Return Autocorrelations: Evidence from a Century of Daily Data," Economic Journal, Royal Economic Society, vol. 102(411), pages 415-25, March.
    3. Reitz, Stefan & Slopek, Ulf Dieter, 2008. "Nonlinear oil price dynamics: a tale of heterogeneous speculators?," Discussion Paper Series 1: Economic Studies 2008,10, Deutsche Bundesbank, Research Centre.
    4. Weiner, Robert J., 2002. "Sheep in wolves' clothing? Speculators and price volatility in petroleum futures," The Quarterly Review of Economics and Finance, Elsevier, vol. 42(2), pages 391-400.
    5. Gerard Gennotte and Hayne Leland., 1989. "Market Liquidity, Hedging and Crashes," Research Program in Finance Working Papers RPF-192, University of California at Berkeley.
    6. Xiaodong Du & Cindy L. Yu & Dermot J. Hayes, 2009. "Speculation and Volatility Spillover in the Crude Oil and Agricultural Commodity Markets: A Bayesian Analysis," Food and Agricultural Policy Research Institute (FAPRI) Publications 09-wp491, Food and Agricultural Policy Research Institute (FAPRI) at Iowa State University.
    7. Silvennoinen, Annastiina & Thorp, Susan, 2013. "Financialization, crisis and commodity correlation dynamics," Journal of International Financial Markets, Institutions and Money, Elsevier, vol. 24(C), pages 42-65.
    8. Bessembinder, Hendrik & Seguin, Paul J., 1993. "Price Volatility, Trading Volume, and Market Depth: Evidence from Futures Markets," Journal of Financial and Quantitative Analysis, Cambridge University Press, vol. 28(01), pages 21-39, March.
    9. Andreas Röthig & Carl Chiarella, 2006. "Investigating Nonlinear Speculation in Cattle, Corn and Hog Futures Markets Using Logistic Smooth Transition Regression Models," Research Paper Series 172, Quantitative Finance Research Centre, University of Technology, Sydney.
    10. G. Geoffrey Booth & Ji-Chai Lin & Teppo Martikainen & Yiuman Tse, 2002. "Trading and Pricing in Upstairs and Downstairs Stock Markets," Review of Financial Studies, Society for Financial Studies, vol. 15(4), pages 1111-1135.
    11. Dasgupta, Susmita & Laplante, Benoit & Mamingi, Nlandu, 1998. "Capital markets responses to environmental performance in developing countries," Policy Research Working Paper Series 1909, The World Bank.
    12. Ahmet Enis Kocagil, 1997. "Does futures speculation stabilize spot prices? Evidence from metals markets," Applied Financial Economics, Taylor & Francis Journals, vol. 7(1), pages 115-125.
    13. Kaufmann, Robert K. & Ullman, Ben, 2009. "Oil prices, speculation, and fundamentals: Interpreting causal relations among spot and futures prices," Energy Economics, Elsevier, vol. 31(4), pages 550-558, July.
    14. Kyle, Albert S, 1985. "Continuous Auctions and Insider Trading," Econometrica, Econometric Society, vol. 53(6), pages 1315-35, November.
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