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Asymmetric Information in the Stock Market: Economic News and Co-movement

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  • Albuquerque, Rui
  • Vega, Clara

Abstract

We analyze the effect that real-time domestic and foreign news about fundamentals have on the correlation of stock returns of a small open economy, Portugal, and a large open economy, the U.S. We also study the role of public and private information in the price formation process in the U.S. and Portuguese stock markets. First, and consistent with our theoretical model, we find that U.S. macroeconomic news and Portuguese earnings news do not affect the cross-country stock market correlation, whereas Portuguese macroeconomic news lowers the cross-country stock market correlation. Second, we find that U.S. public information affects Portuguese stock market returns, but this effect is diminished when U.S. stock market returns are included in the regression; we provide evidence in the paper that this effect does not derive from contagion as commonly accepted. Finally, public information news in the U.S. is associated with increased liquidity, while the effect in Portugal depends on the type of news releases.

Suggested Citation

  • Albuquerque, Rui & Vega, Clara, 2006. "Asymmetric Information in the Stock Market: Economic News and Co-movement," CEPR Discussion Papers 5598, C.E.P.R. Discussion Papers.
  • Handle: RePEc:cpr:ceprdp:5598
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    Cited by:

    1. Jan Hanousek & Evžen Kočenda, 2010. "Vliv vnitrodenních makroekonomických zpráv na akciové trhy nových států EU
      [Effect of Intraday Information Flow on the Emerging European Stock Markets]
      ," Politická ekonomie, University of Economics, Prague, vol. 2010(4), pages 435-457.
    2. Hanousek, Jan & Kocenda, Evzen & Kutan, Ali M., 2009. "The reaction of asset prices to macroeconomic announcements in new EU markets: Evidence from intraday data," Journal of Financial Stability, Elsevier, vol. 5(2), pages 199-219, June.
    3. Percival S. Gabriel, 2013. "How Newspaper-Article-Events, Other Stock Market Indices, and the Foreign Currency Rate Affect the Philippine Stock Market," Asian Economic and Financial Review, Asian Economic and Social Society, vol. 3(4), pages 423-444, April.

    More about this item

    Keywords

    contagion; information spillovers; international equity returns; private information; public news announcements;

    JEL classification:

    • F3 - International Economics - - International Finance
    • G12 - Financial Economics - - General Financial Markets - - - Asset Pricing; Trading Volume; Bond Interest Rates
    • G14 - Financial Economics - - General Financial Markets - - - Information and Market Efficiency; Event Studies; Insider Trading
    • G15 - Financial Economics - - General Financial Markets - - - International Financial Markets

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