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The Optimal Currency Basket with Input Currency and Output Currency

  • Kang Shi

    (The Chinese University of Hong Kong)

  • Juanyi Xu

    (Hong Kong University of Science and Technology)

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    This paper explores the determination of the optimal currency basket in a small open economy general equilibrium model with sticky prices. In contrast to traditional literature, we focus on an economy with vertical trade, where one currency is used as the invoicing currency of imported intermediate goods and is called the "input currency", while the other currency is used for the invoicing of exported finished goods and is called the "output currency". We find that in the optimal currency basket the weight between the input currency and the output currency depends critically on the structure of vertical trade. Moreover, we show that if a country decides to choose a single-currency peg, then the choice of pegging currency depends mainly on how other economies respond to external exchange rate fluctuations. In a sense, our paper provides a case for the Chinese RMB peg in some East Asian economies, given the importance of the RMB as an input currency.

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    Paper provided by Hong Kong Institute for Monetary Research in its series Working Papers with number 172008.

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    Length: 27 pages
    Date of creation: Sep 2008
    Date of revision:
    Handle: RePEc:hkm:wpaper:172008
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    1. Cook, David & Devereux, Michael B., 2006. "External currency pricing and the East Asian crisis," Journal of International Economics, Elsevier, vol. 69(1), pages 37-63, June.
    2. Stephanie Schmitt-Grohe & Martin Uribe, 2000. "Stabilization Policy and the Costs of Dollarization," Departmental Working Papers 200006, Rutgers University, Department of Economics.
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    4. Robert C. Feenstra & Gordon H. Hanson, 2004. "Intermediaries in Entrepot Trade: Hong Kong Re-Exports of Chinese Goods," Journal of Economics & Management Strategy, Wiley Blackwell, vol. 13(1), pages 3-35, 03.
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    8. Guillermo A. Calvo & Carmen M. Reinhart, 2000. "Fear of Floating," NBER Working Papers 7993, National Bureau of Economic Research, Inc.
    9. Keller, Wolfgang, 1997. "How trade patterns and technology flows affect productivity growth," Policy Research Working Paper Series 1831, The World Bank.
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    17. Lawrence J. Christiano & Martin Eichenbaum & Charles L. Evans, 1998. "Monetary Policy Shocks: What Have We Learned and to What End?," NBER Working Papers 6400, National Bureau of Economic Research, Inc.
    18. Teo, Wing Leong, 2009. "Should East Asia's currencies be pegged to the yen? The role of invoice currency," Journal of the Japanese and International Economies, Elsevier, vol. 23(3), pages 283-308, September.
    19. David Hummels & Dana Rapoport & Kei-Mu Yi, 1998. "Vertical specialization and the changing nature of world trade," Economic Policy Review, Federal Reserve Bank of New York, issue Jun, pages 79-99.
    20. Eva Ortega & Nooman Rebei, 2006. "The Welfare Implications of Inflation versus Price-Level Targeting in a Two-Sector, Small Open Economy," Working Papers 06-12, Bank of Canada.
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    22. Turnovsky, Stephen J., 1982. "A determination of the optimal currency basket : A macroeconomic analysis," Journal of International Economics, Elsevier, vol. 12(3-4), pages 333-354, May.
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