Monetary Policy Responses to Exogenous Perturbations: The Case of a Small Open Economy (2007-2018)
DOI:
https://doi.org/10.13133/2037-3643_73.293_5Keywords:
Cointegration, Bayesian VARS, Inflation, Impulse response, Money supply, Oil shocksAbstract
While autonomous central banks in large open economies are usually predisposed to use monetary rules to target inflation, output, and long-term interest rates, central banks in small open economies face peculiar challenges in their attempts to attain and maintain liquidity, stable prices and full employment. This paper investigates the effects of monetary policy in the case of Sierra Leone, assuming that information for rule-based monetary policy is insufficient and imprecise. We use the Bayesian model to evaluate primitive (priors), posterior enhancements and responses of key variables to exogenous perturbations based on information from 2007 to 2018. We find that the effects of disturbances that are associated with crude oil prices have a more persistent effect on national output than the dominant monetary instrument (T-Bills). The response of monetary policy to exogenous perturbations is generally weak and less persistent. Granger-causality tests reveal that internal conditions make it less likely for the central bank to robustly react to external shocks.
JEL codes: E42, E 47, E50, E52
References
Bangura M., Caulker E. and Pessima S. (2012), “Exchange Rate Pass-Through to Inflation in Sierra Leone: A Structural Vector Autoregressive Approach”, Journal of Monetary and Economic Integration, 12 (1), pp. 93-123.
Ciccarelli M. and Rebucci A. (2003). “Bayesian VARs: A Survey of the Recent Literature with Application to the European Monetary System”, IMF Working Paper, no. WP/03/102, Washington (DC): International Monetary Fund.
Engle R.F. and Granger C.W.J. (1987), “Co-integration and Error Correction: Representation, Estimation, and Testing”, Econometrica, 55 (2), pp. 251-276.
Gujarati D. (2004), Basic Econometrics (4th ed.), New York: The McGraw Hill Company.
Hill R.C., Griffiths W.E. and Lim G.C. (2011), Principles of Econometrics (4th ed.). Hoboken (NJ): John Wiley.
IMF – International Monetary Fund, African Department (2019), “Sierra Leone: Economic Development Documents – National Development Plan, 2019-2023”, IMF Country Report, no. 19/2018, Washington (DC): International Monetary Fund.
Jabbie M. and Jackson E.A. (forthcoming), “On the Validity of Purchasing Power Parity (PPP): The Case of Sierra Leone”.
Jackson E.A. (2016), “Phronesis and Resource Curse Hypothesis in Post-Independent Sierra Leone”, Ilorin Journal of Economic Policy, 3 (1), pp. 1-10.
Jackson E.A. (2017), “Economic Methodology: Paradox of Ceteris Paribus Law in the Context of Sierra Leone”, Méthod(e)s: African Review of Social Science Methodology, 2 (1), pp. 31-40.
Jackson E.A. (2018), “Political Economy of Forest Ecology in Sierra Leone: A Focus on the Western Area Peninsula Forest (WAPFoR)”, Postmodern Openings, 9 (1), pp. 63-90.
Jackson E.A. (2020a), “Informal Employment”, in Leal Filho W., Azul A., Brandli L., Lange Salvia A. and Wall T. (eds), Decent Work and Economic Growth. Encyclopedia of the UN Sustainable Development Goals, Cham: Springer.
Jackson E.A. (2020b), “Understanding SLL/US$ Exchange Rate Dynamics in Sierra Leone Using Box-Jenkins ARIMA Approach”, MPRA Paper, no.97965, Munich: Munich Personal Repec Archive.
Jackson E.A. and Jabbie M. (2020), “Twin Deficits Hypothesis as an Indication of Government Failure in Sierra Leone: An Empirical Investigation (1980-2018)”, İktisat Politikası Araştırmaları Dergisi – Journal of Economic Policy Researches, 7 (1), pp. 43-68.
Jackson E.A. and Tamuke E. (2018), “Probability Forecast Using Fan Chart Analysis: A Case of the Sierra Leone Economy”, Journal of Advanced Studies in Finance, 9 (1), pp. 34-44.
Jackson E.A., Sillah A. and Tamuke E. (2018), “Modelling Monthly Headline Consumer Price Index (HCPI) through Seasonal Box-Jenkins Methodology”, International Journal of Sciences, 7 (1), pp. 51-56.
Jackson E.A., Tamuke E. and Jabbie M. (2019a), “Dynamic Effect of Inflation Shocks in Sierra Leone: An Empirical Analysis”, Journal of Advanced Studies in Finance, 10 (2), pp. 73-91.
Jackson, E.A., Tamuke, E., and Jabbie, M. (2019b). “Disaggregated Short-Term Inflation Forecast (STIF) for Monetary Policy Decision in Sierra Leone”, Financial Markets, Institutions and Risk (FMIR), 3 (4), pp. 32-48.
Jones Y.M. (2014), “Debt Overhand and Natural Resources: Revisiting the Resource Curse Hypothesis”, PhD Thesis, Birkbeck: Birkbeck College, University of London, available at: http://bbktheses.da.ulcc.ac.uk/95/.
Kallon K.M. (2003), The Political Economy of Corruption in Sierra Leone, Lewiston, New York: The Edwin Mellen Press.
Lynch S.M. (2007), Introduction to Applied Bayesian Statistics and Estimation for Social Sciences, London: Springer.
Mackinnon J.G., Haug A.A. and Michelis L. (1999), “Numerical Distribution Function of Likelihood Ratio Test For Cointegration”, Journal of Applied Econometrics, 14 (1999), pp. 563-577.
Tamuke E., Jackson E.A. and Sillah A. (2018), “Forecasting inflation in Sierra Leone using ARIMIA and ARIMAX: A Comparative Evaluation”, Theoretical and Practical Research in Economic Field, 9 (1), pp. 63-74.
UNCDF – United Nation Capital Development Fund (2018), Boosting Agriculture and Food Security: DFS Ecosystem Assessment for Smallholder Farmers in Sierra Leone, New York: UNCDF.
Warburton C.E.S. (2018a), The Development of International Monetary Policy, Oxon (UK): Routledge.
Warburton C.E.S. (2018b), “Covered Interest Parity and Frictions in Currency and Money Markets: Analysis of the British Pound and US Dollar for the period 1999-2006”, Applied Econometrics and International Development, 18 (1), pp. 55-73.
World Bank (2017), Enterprise Survey 2017, Washington (DC): World Bank, available at: https://microdata.worldbank.org/index.php/catalog/2975.
World Bank (2018), “Reviving Urban Development: The Importance of Freetown for the National Economy”, Sierra Leone Economic Update, no. 1, June. Washington (DC): World Bank, available at: http://documents.worldbank.org/curated/en/304841528737912303/pdf/127049-WP-PUBLIC-SierraLeoneEconomicUpdatev.pdf.
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