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Re-examining Symmetry of Shocks for East Asia: Results Using a VAR with Sign Restrictions

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  • Vu Tuan Khai

Abstract

I revisit the hotly debated topic regarding the possibility of introducing a common currency for East Asia from the point of view of shock symmetry. I first point out a serious problem of the existing studies which use the VAR method with long-run restrictions developed by Blanchard and Quah (1989) in that the signs of the impulse response functions to the same structural shock are not necessarily consistent across the countries. This means that the high (low) correlations of structural shocks do not necessarily imply low (high) costs of a common currency area. To overcome this problem, I apply the VAR method with sign restrictions developed by Uhlig (2005). I used the AD-AS model to impose sign restrictions on the responses of GDP and CPI to demand and supply shocks. One main finding is that demand shocks are significantly positively correlated among almost all East Asian countries. But overall, East Asia as a whole is not suitable for a common currency because correlations of supply shocks are low.

Suggested Citation

  • Vu Tuan Khai, 2009. "Re-examining Symmetry of Shocks for East Asia: Results Using a VAR with Sign Restrictions," Global COE Hi-Stat Discussion Paper Series gd08-042, Institute of Economic Research, Hitotsubashi University.
  • Handle: RePEc:hst:ghsdps:gd08-042
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    File URL: http://gcoe.ier.hit-u.ac.jp/research/discussion/2008/pdf/gd08-042.pdf
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    References listed on IDEAS

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    1. Dedola, Luca & Neri, Stefano, 2007. "What does a technology shock do? A VAR analysis with model-based sign restrictions," Journal of Monetary Economics, Elsevier, vol. 54(2), pages 512-549, March.
    2. Gert Peersman & Roland Straub, 2009. "Technology Shocks And Robust Sign Restrictions In A Euro Area Svar," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 50(3), pages 727-750, August.
    3. Zhaoyong Zhang & Kiyotaka Sato & Michael McAleer, 2004. "Is a monetary union feasible for East Asia?," Applied Economics, Taylor & Francis Journals, vol. 36(10), pages 1031-1043.
    4. Cohen, Daniel & Wyplosz, Charles, 1989. "The European Monetary Union: An Agnostic Evaluation," CEPR Discussion Papers 306, C.E.P.R. Discussion Papers.
    5. Zhaoyong Zhang & Kiyotaka Sato, 2008. "Whither A Currency Union in Greater China?," Open Economies Review, Springer, vol. 19(3), pages 355-370, July.
    6. Dedola, Luca & Neri, Stefano, 2007. "What does a technology shock do? A VAR analysis with model-based sign restrictions," Journal of Monetary Economics, Elsevier, vol. 54(2), pages 512-549, March.
    7. Kim, David, 2007. "An East Asian currency union?: The empirical nature of macroeconomic shocks in East Asia," Journal of Asian Economics, Elsevier, vol. 18(6), pages 847-866, December.
    8. Kiyotaka Sato & Zhaoyong Zhang, 2006. "Real Output Co-movements in East Asia: Any Evidence for a Monetary Union?," The World Economy, Wiley Blackwell, vol. 29(12), pages 1671-1689, December.
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    Cited by:

    1. Fidrmuc, Jarko & Korhonen, Iikka, 2015. "Meta-analysis of Chinese business cycle correlation," BOFIT Discussion Papers 6/2015, Bank of Finland, Institute for Economies in Transition.
    2. Alberto Coco & Andrea Silvestrini, 2017. "The nature and propagation of shocks in the euro area: a comparative SVAR analysis," International Journal of Computational Economics and Econometrics, Inderscience Enterprises Ltd, vol. 7(1/2), pages 95-114.

    More about this item

    Keywords

    Structural VAR; Long run restriction; Sign restriction; Symmetry of Shocks; Common Currency; East Asia;

    JEL classification:

    • E32 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Business Fluctuations; Cycles
    • F33 - International Economics - - International Finance - - - International Monetary Arrangements and Institutions
    • F41 - International Economics - - Macroeconomic Aspects of International Trade and Finance - - - Open Economy Macroeconomics

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