Abdul-Aziz Ibn Musah, Jianguo Du, Seidu Ayishetu, Hira Salah ud din Khan


The increasing trend in which Ghanaians hold deposits and loans denominated in foreign currency – notably the U.S. dollar – has generated a lot of controversy in macroeconomic discourse recently. Although the debate has usually been linked to exchange rate volatility and inflation in developing countries practising floating exchange rates, empirical evidence in Africa is still limited. The purpose of this study is to explore the interplay between dollarization, inflation, and exchange rates for the period January 1990 to March 2016. The methodology employed consisted of the Johansen co-integration and vector error correction framework that capture both the short run and long run dynamics of the interplays between the variables. Monthly data for the consumer price index, broad money, and nominal exchange rates were obtained from the International Monetary Fund’s International Financial Statistics (IMF IFS) 2016 online database.The rest of the data; foreign currency deposits and total deposits were also obtained from the Research Department of the Bank of Ghana. After confirming the degree of integration of the variables, the Johansen co-integration approach was implemented to determine whether the variables share any long-run relationships. The finding is that the variables were co-integrated, suggesting a common trend or co-movement of the variables in the long-run. Further, it was reported that there is a positive effect of exchange rate and inflation on dollarization in the long-run. This co-movement brings to bear the predictability of some of the variables using the behaviour of the other variables. The findings highlight that, the ability of the Bank of Ghana to control the high demand for foreign currency depends on its capability of controlling abnormal rates of exchange rate depreciation and high inflation. Also, since persistent depreciation is such as to present deleterious inflation it suggests that the major task for the monetary authority is to control exchange rates.

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Aghion, P., Bacchetta, P., Ranciere, R., & Rogoff, K. (2009). Exchange rate volatility and productivity growth: The role of financial development. Journal of Monetary Economics, 56(4), 494-513.

Akaike, H. (1973). Maximum likelihood identification of Gaussian autoregressive moving average models. Biometrika, 60(2), 255-265.

Akçay, O. C., Alper, C. E., & Karasulu, M. (1997). Currency substitution and exchange rate instability: The Turkish case. European Economic Review, 41(3), 827-835.

Alesina, A., & Barro, R. J. (2001). Dollarization. The American Economic Review, 91(2), 381-385.

Alvarez-Plata, P., & Garcia-Herrero, A. (2008). To dollarize or de-dollarize: Consequences for Monetary Policy.

Angkinand, A. P., & Willett, T. D. (2011). Exchange rate regimes and banking crises: The channels of influence investigated. International Journal of Finance & Economics, 16(3), 256-274.

Arteta, C. O. (2005). Exchange rate regimes and financial dollarization: Does flexibility reduce currency mismatches in bank intermediation? Topics in Macroeconomics, 5(1).

Bahmani-Oskooee, M., & Domac, I. (2003). On the Link between Dollarisation and Inflation: Evidence from Turkey. comparative economic Studies, 45(3), 306-328.

Bahmani-Oskooee, M., & Hegerty, S. W. (2007). Exchange rate volatility and trade flows: a review article. Journal of Economic Studies, 34(3), 211-255.

Baliño, T. J., Bennett, A., & Borensztein, E. (1999). Monetary policy in dollarized economies (Vol. 171): International Monetary Fund.

Bartram, S. M., & Karolyi, G. A. (2006). The impact of the introduction of the Euro on foreign exchange rate risk exposures. Journal of Empirical Finance, 13(4), 519-549.

Basso, H. S., Calvo-Gonzalez, O., & Jurgilas, M. (2011). Financial dollarization: The role of foreign-owned banks and interest rates. Journal of banking & finance, 35(4), 794-806.

Bogetic, Z. (2000). Official dollarization: Current experiences and issues


Bogetić, Ž. (2000). Full Dollarization: Fad or Future? Challenge, 43(2), 17-48.

Borensztein, M. E., & Berg, M. A. (2000). The choice of exchange rate regime and monetary target in highly dollarized economies: International Monetary Fund.

Broda, C. M., & Yeyati, E. L. (2006). Endogenous deposit dollarization. Journal of Money, Credit, and Banking, 38(4), 963-988.

Calvo, G. A., & Végh, C. (1996). From currency substitution to dollarization and beyond: analytical and policy issues. Money, Exchange Rates, and Output, 153-175.

Carlberg, M. (2012). Sustainability and optimality of public debt: Springer Science & Business Media.

Catao, L. A., & Terrones, M. E. (2005). Fiscal deficits and inflation. Journal of Monetary Economics, 52(3), 529-554.

Chang, S. G., Yu, B., & Vetterli, M. (2000). Adaptive wavelet thresholding for image denoising and compression. IEEE transactions on image processing, 9(9), 1532-1546.

Chit, M. M., Rizov, M., & Willenbockel, D. (2010). Exchange rate volatility and exports: new empirical evidence from the emerging East Asian Economies. The World Economy, 33(2), 239-263.

Civcir, I. (2005). Dollarization and its long-run determinants in Turkey Money and Finance in the Middle East: Missed Oportunities or Future Prospects? (pp. 201-232): Emerald Group Publishing Limited.

Clark, P., Tamirisa, N., Wei, S.-J., Sadikov, A., & Zeng, L. (2004). Exchange rate volatility and trade flows-some new evidence. IMF Occasional Paper, 235.

Corrado, G. (2008). An open economy model with currency substitution and real dollarization. Journal of Economic Studies, 35(1), 69-93.

Davidson, R., & MacKinnon, J. G. (1993). Estimation and inference in econometrics.

De Nicoló, G., Honohan, P., & Ize, A. (2005). Dollarization of bank deposits: Causes and consequences. Journal of banking & finance, 29(7), 1697-1727.

Devereux, M. B., & Yetman, J. (2010). Price adjustment and exchange rate pass-through. Journal of International Money and Finance, 29(1), 181-200.

Dickey, D. A., & Fuller, W. A. (1979). Distribution of the estimators for autoregressive time series with a unit root. Journal of the American statistical association, 74(366a), 427-431.

Dickey, D. A., & Fuller, W. A. (1981). Likelihood ratio statistics for autoregressive time series with a unit root. Econometrica: Journal of the Econometric Society, 1057-1072.

Domaç, I., & Peria, M. S. M. (2003). Banking crises and exchange rate regimes: is there a link? Journal of International Economics, 61(1), 41-72.

Edwards, S., & Magendzo, I. I. (2001). Dollarization, inflation and growth.

Ehrmann, M., Ellison, M., & Valla, N. (2003). Regime-dependent impulse response functions in a Markov-switching vector autoregression model. Economics Letters, 78(3), 295-299.

Engle, R. F., & Granger, C. W. (1987). Co-integration and error correction: representation, estimation, and testing. Econometrica: Journal of the Econometric Society, 251-276.

Feige, E. L. (2003). Dynamics of currency substitution, asset substitution and de facto dollarisation and euroisation in transition countries. comparative economic Studies, 45(3), 358-383.

Fielding, D., & Shields, K. (2005). Do currency unions deliver more economic integration than fixed exchange rates? Evidence from the Franc Zone and the ECCU. Journal of Development Studies, 41(6), 1051-1070.

Garcia-Escribano, M. M. (2010). Peru: Drivers of de-dollarization: International Monetary Fund.

Georgiadis, G. (2014). Towards an explanation of cross-country asymmetries in monetary transmission. Journal of Macroeconomics, 39, 66-84.

Ghalayini, L. (2011). The Impact of Dollarization on the Efficiency of Monetary in Lebanon”: Interaction between Dollarization and Inflation. Middle Eastern Finance and Economics, 14, 128-139.

Girton, L., & Roper, D. (1981). Theory and implications of currency substitution. Journal of Money, Credit and Banking, 13(1), 12-30.

Guidotti, P. E., & Rodriguez, C. A. (1992). Dollarization in Latin America: Gresham's law in reverse? Staff Papers, 39(3), 518-544.

Günay, H., & Kılınç, M. (2015). Credit market imperfections and business cycle asymmetries in Turkey. Journal of Empirical Finance, 34, 79-98.

Haiss, P. R., & Rainer, W. (2012). Credit Euroization in Eastern Europe: The ‘Foreign Funds’ Channel at Work. comparative economic Studies, 54(3), 471-505.

Hannan, E. J., & Quinn, B. G. (1979). The determination of the order of an autoregression. Journal of the Royal Statistical Society. Series B (Methodological), 190-195.

Ho, C. (2003). Contemplating the credibility of Currency Boards Exchange Rate Regimes and Macroeconomic Stability (pp. 145-184): Springer.

Honohan, P. (2007). Dollarization and exchange rate fluctuations.

Honohan, P., & Shi, A. (2002). Deposit dollarization and the financial sector in emerging economies.

Hoyt Bleakley, K. C. (2005). Corporate Dollar Debt and Deprectiations: Much Ado about Nothing? Ideas for Development in the Americas.

Humpage, L. V. (2002). Closing the gaps?: The politics of Māori affairs policy: A thesis presented in partial fulfilment of the requirements for the degree of Doctor of Philosophy in Sociology at Massey University, Albany, New Zealand.

Ize, A., & Parrado, E. (2006). Real Dollarization, Financial Dollarization and Monetary Policy: Central Bank of Chile Santiago de Chile.

Ize, A., & Yeyati, E. L. (2003). Financial dollarization. Journal of International Economics, 59(2), 323-347. doi:10.1016/s0022-1996(02)00017-x

Johansen, S. (1991). Estimation and hypothesis testing of cointegration vectors in Gaussian vector autoregressive models. Econometrica: Journal of the Econometric Society, 1551-1580.

Johansen, S. (1995). Identifying restrictions of linear equations with applications to simultaneous equations and cointegration. Journal of econometrics, 69(1), 111-132.

Johansen, S., & Juselius, K. (1990). Maximum likelihood estimation and inference on cointegration—with applications to the demand for money. Oxford Bulletin of Economics and statistics, 52(2), 169-210.

Karacal, M. (2004). Does dollarization really matter? An empirical investigation of the Turkish economy.

Kesriyeli, M., Özmen, E., & Yiğit, S. (2011). Corporate sector liability dollarization and exchange rate balance sheet effect in Turkey. Applied Economics, 43(30), 4741-4747.

Lange, C., & Sauer, C. (2005). Dollarization in Latin America: seigniorage costs and policy implications. The Quarterly Review of Economics and Finance, 45(4), 662-679.

Luca, A., & Petrova, I. (2008). What drives credit dollarization in transition economies? Journal of banking & finance, 32(5), 858-869.

Matthew, O., & Adegboye, F. B. (2014). An Analysis of the Effect of Oil Price Shock and Exchange Rate Instability on Economic Growth in Nigeria. Scottish Journal of Arts, Social Sciences and Scientific Studies.

McKinnon, R. I., & Pill, H. (1996). Credible Liberalizations and International Capital Flows: The" Overborrowing Syndrome" Financial Deregulation and Integration in East Asia, NBER-EASE Volume 5 (pp. 7-50): University of Chicago Press.

Mengesha, L. G. (2013). An Investigation of the Macroeconomic and Monetary Effects of Dollarization in Eritrea. University of Waikato.

Mengesha, L. G., & Holmes, M. J. (2013a). Does Dollarization Alleviate or Aggravate Exchange Rate Volatility? Journal of Economic Development, 38(2), 99.

Mengesha, L. G., & Holmes, M. J. (2013b). Monetary policy and its transmission mechanisms in Eritrea. Journal of Policy Modeling, 35(5), 766-780.

Mengesha, L. G., & Holmes, M. J. (2015). Does dollarization reduce or produce inflation? Journal of Economic Studies, 42(3), 358-376.

Naceur, M. S. B., Hosny, A., & Hadjian, G. (2015). How to De-Dollarize Financial Systems in the Caucasus and Central Asia? : International Monetary Fund.

Narayan, P. K. (2005). The saving and investment nexus for China: evidence from cointegration tests. Applied Economics, 37(17), 1979-1990.

Obstfeld, M. (2013). On keeping your powder dry: fiscal foundations of financial and price stability: Centre for Economic Policy Research.

Perron, P., & Qu, Z. (2007). A simple modification to improve the finite sample properties of Ng and Perron's unit root tests. Economics Letters, 94(1), 12-19.

Phillips, P. C. (1987). Towards a unified asymptotic theory for autoregression. Biometrika, 74(3), 535-547.

Phillips, P. C. (1988). Spectral regression for cointegrated time series: Cowles Foundation for Research in Economics at Yales University.

Phillips, P. C., & Jin, S. (2002). The KPSS test with seasonal dummies. Economics Letters, 77(2), 239-243.

Phillips, P. C., & Perron, P. (1988). Testing for a unit root in time series regression. Biometrika, 75(2), 335-346.

Reinhart, C. M., Rogoff, K. S., & Savastano, M. A. (2003). Addicted to dollars. Retrieved from

Reinhart, C. M., Rogoff, K. S., & Savastano, M. A. (2014). Addicted to Dollars. Annals of Economics & Finance, 15(1).

Rojas-Suarez, L. (1992). Currency substitution and inflation in Peru.

Sahay, R., & Vegh, C. (1995). Dollarization in transition economies: evidence and policy implications.

Sauer, S., Lange, B. M., Gobom, J., Nyarsik, L., Seitz, H., & Lehrach, H. (2005). Miniaturization in functional genomics and proteomics. Nature reviews. Genetics, 6(6), 465.

Savastano, M. A. (1996). Dollarization in Latin America: Recent evidence and some policy issues.

Schnabl, G. (2008). Exchange rate volatility and growth in small open economies at the EMU periphery. Economic Systems, 32(1), 70-91.

Schnabl, G. (2009). Exchange rate volatility and growth in emerging Europe and East Asia. Open Economies Review, 20(4), 565-587.

Schwarz, G. (1978). Estimating the dimension of a model. The annals of statistics, 6(2), 461-464.

Soto, R. (2009). Dollarization, economic growth, and employment. Economics Letters, 105(1), 42-45.

Terkper, S. E. (2014). Mid-year Review of the Budget Statement and Economic Policy and Supplementary Estimates of the Government of Ghana for the 2014 Financial Year: Presented to Parliament on Wednesday, 16th July, 2014: Ministry of Finance.

Tiwari, A. K. (2011). A structural VAR analysis of renewable energy consumption, real GDP and CO2 emissions: evidence from India. Economics Bulletin, 31(2), 1793-1806.

Towbin, P., & Weber, S. (2013). Limits of floating exchange rates: The role of foreign currency debt and import structure. Journal of Development Economics, 101, 179-194.

Tweneboah, G. (2016). Dollarization and macroeconomic instability in Ghana.

Willett, T. D., & Banaian, K. (1996). Currency Substitution and Seniorage Considerations in the Choice of Currency Policies. The Macroeconomics of International Currencies, Brookfield, VT: Edward Elgar.

Yinusa, D. O. (2008). Between dollarization and exchange rate volatility: Nigeria's portfolio diversification option. Journal of Policy Modeling, 30(5), 811-826.

Yinusa, M. A., & Basil, A. O. (2008). Socio-Economic Factors Influencing Students Academic Performance in Nigeria: Some Explanation from a Local Survey. Pakistan Journal of Social Sciences, 5(4), 319-323.


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