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A re-examination of the exchange rate – interest rate differential relationship in Ghana

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  • Ofori, Isaac Kwesi
  • Armah, Mark Kojo

Abstract

This paper revisits the exchange rate and interest rate differential relationship since Ghana adopted the inflation targeting regime. Using macro-data spanning 2002 to 2019 for Ghana and the United States, we show the nonexistence of the relationship in both the short-run and long-run. Further, we show a positive but slow responsiveness of exchange rate to interest rate differential shocks from the short-run to medium term. The long-run result however shows a case of a strong and significant response of exchange rate to interest rate differential shocks. We recommend that the Bank of Ghana address perennial macroeconomic instability, especially on inflation which we conjecture to fuel investment uncertainty and investment insensitivity to interest rate.

Suggested Citation

  • Ofori, Isaac Kwesi & Armah, Mark Kojo, 2021. "A re-examination of the exchange rate – interest rate differential relationship in Ghana," MPRA Paper 107586, University Library of Munich, Germany.
    • Handle: RePEc:pra:mprapa:107586
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    More about this item

    Keywords

    Inflation Targeting; Exchange Rate; Impulse Response Function; Interest Rate Differential; VAR; Ghana;
    All these keywords.

    JEL classification:

    • A1 - General Economics and Teaching - - General Economics
    • E4 - Macroeconomics and Monetary Economics - - Money and Interest Rates
    • E43 - Macroeconomics and Monetary Economics - - Money and Interest Rates - - - Interest Rates: Determination, Term Structure, and Effects
    • E5 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit
    • F3 - International Economics - - International Finance
    • F31 - International Economics - - International Finance - - - Foreign Exchange
    • G21 - Financial Economics - - Financial Institutions and Services - - - Banks; Other Depository Institutions; Micro Finance Institutions; Mortgages

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