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The Role Of The Exchange Rate In A New Keynesian Dsge Model For The South African Economy

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  • Sami Alpanda
  • Kevin Kotzé
  • Geoffrey Woglom

Abstract

We build a small open economy New Keynesian dynamic stochastic general equilibrium model for South Africa similar to Steinbach et al. We abandon their assumption of complete risk sharing with the foreign economy, and introduce country risk shocks to allow deviations from uncovered interest rate parity. These changes allow us to include the exchange rate as an observable variable in the estimation of the model. Using forecast error variance decompositions and historical decompositions, we show that country risk shocks have sizable effects on the South African business cycle. We also explore the optimal monetary policy implications of our model within the context of Taylor rules.

Suggested Citation

  • Sami Alpanda & Kevin Kotzé & Geoffrey Woglom, 2010. "The Role Of The Exchange Rate In A New Keynesian Dsge Model For The South African Economy," South African Journal of Economics, Economic Society of South Africa, vol. 78(2), pages 170-191, June.
    • Handle: RePEc:bla:sajeco:v:78:y:2010:i:2:p:170-191
    DOI: 10.1111/j.1813-6982.2010.01239.x
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    References listed on IDEAS

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    1. Stan du Plessis & Ben Smit & Federico Sturzenegger, 2007. "Identifying aggregate supply and demand shocks in South Africa," Working Papers 11/2007, Stellenbosch University, Department of Economics.
    2. Sungbae An & Frank Schorfheide, 2007. "Bayesian Analysis of DSGE Models—Rejoinder," Econometric Reviews, Taylor & Francis Journals, vol. 26(2-4), pages 211-219.
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    4. Mark Gertler & Jordi Gali & Richard Clarida, 1999. "The Science of Monetary Policy: A New Keynesian Perspective," Journal of Economic Literature, American Economic Association, vol. 37(4), pages 1661-1707, December.
    5. Mr Steinbach & Pt Mathuloe & Bw Smit, 2009. "An Open Economy New Keynesian Dsge Model Of The South African Economy," South African Journal of Economics, Economic Society of South Africa, vol. 77(2), pages 207-227, June.
    6. Geoffrey Woglom, 2003. "How Has Inflation Targeting Affected Monetary Policy in South Africa?," South African Journal of Economics, Economic Society of South Africa, vol. 71(2), pages 198-210, June.
    7. Mark Gertler & Jordi Gali & Richard Clarida, 1999. "The Science of Monetary Policy: A New Keynesian Perspective," Journal of Economic Literature, American Economic Association, vol. 37(4), pages 1661-1707, December.
    8. Alejandro Justiniano & Bruce Preston, 2010. "Monetary policy and uncertainty in an empirical small open-economy model," Journal of Applied Econometrics, John Wiley & Sons, Ltd., vol. 25(1), pages 93-128.
    9. Alberto Ortiz & Federico Sturzenegger, 2007. "Estimating Sarb'S Policy Reaction Rule," South African Journal of Economics, Economic Society of South Africa, vol. 75(4), pages 659-680, December.
    10. Sungbae An & Frank Schorfheide, 2007. "Bayesian Analysis of DSGE Models," Econometric Reviews, Taylor & Francis Journals, vol. 26(2-4), pages 113-172.
    11. Stan du Plessis & Ben Smit & Federico Sturzenegger, 2008. "Identifying Aggregate Supply and Demand Shocks in South Africa †," Journal of African Economies, Centre for the Study of African Economies, vol. 17(5), pages 765-793, November.
    12. Calvo, Guillermo A., 1983. "Staggered prices in a utility-maximizing framework," Journal of Monetary Economics, Elsevier, vol. 12(3), pages 383-398, September.
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    Cited by:

    1. Stan du Plessis & Ben Smit & Rudi Steinbach, 2014. "A mediumsized open economy DSGE model of South Africa," Working Papers 6319, South African Reserve Bank.
    2. Paetz, Michael & Gupta, Rangan, 2016. "Stock price dynamics and the business cycle in an estimated DSGE model for South Africa," Journal of International Financial Markets, Institutions and Money, Elsevier, vol. 44(C), pages 166-182.
    3. Byron Botha & Rulof Burger & Kevin Kotzé & Neil Rankin & Daan Steenkamp, 2023. "Big data forecasting of South African inflation," Empirical Economics, Springer, vol. 65(1), pages 149-188, July.
    4. Rangan Gupta & Rudi Steinbach, 2010. "Forecasting Key Macroeconomic Variables of the South African Economy: A Small Open Economy New Keynesian DSGE-VAR Model," Working Papers 201019, University of Pretoria, Department of Economics.
    5. Aye, Goodness C. & Balcilar, Mehmet & Bosch, Adél & Gupta, Rangan, 2014. "Housing and the business cycle in South Africa," Journal of Policy Modeling, Elsevier, vol. 36(3), pages 471-491.
    6. Hove, Seedwell & Touna Mama, Albert & Tchana Tchana, Fulbert, 2015. "Monetary policy and commodity terms of trade shocks in emerging market economies," Economic Modelling, Elsevier, vol. 49(C), pages 53-71.
    7. repec:ipg:wpaper:2014-562 is not listed on IDEAS
    8. Rangan Gupta & Patrick T. Kanda & Mampho P. Modise & Alessia Paccagnini, 2015. "DSGE model-based forecasting of modelled and nonmodelled inflation variables in South Africa," Applied Economics, Taylor & Francis Journals, vol. 47(3), pages 207-221, January.
    9. Buffie, Edward F. & Zanna, Luis-Felipe, 2018. "Limited Asset Market Participation And Determinacy In The Open Economy," Macroeconomic Dynamics, Cambridge University Press, vol. 22(8), pages 1937-1977, December.
    10. Mr. Alun H. Thomas, 2012. "Exchange Rate and Foreign Interest Rate Linkages for Sub-Saharan Africa Floaters," IMF Working Papers 2012/208, International Monetary Fund.
    11. Balcilar, Mehmet & Gupta, Rangan & Kotzé, Kevin, 2015. "Forecasting macroeconomic data for an emerging market with a nonlinear DSGE model," Economic Modelling, Elsevier, vol. 44(C), pages 215-228.
    12. Johannes Hermanus Kemp & Hylton Hollander, 2020. "A medium-sized, open-economy, fiscal DSGE model of South Africa," WIDER Working Paper Series wp-2020-92, World Institute for Development Economic Research (UNU-WIDER).
    13. Vo Phuong Mai Le & Ruthira Naraidoo, 2019. "Monetary policy in a Model with Commodity and Financial Markets," Working Papers 201928, University of Pretoria, Department of Economics.
    14. Romain Houssa & Jolan Mohimont & Chris Otrok, 2019. "A model for international spillovers to emerging markets," Working Paper Research 370, National Bank of Belgium.
    15. Sami Alpanda & Kevin Kotzé & Geoffrey Woglom, 2011. "Forecasting Performance Of An Estimated Dsge Model For The South African Economy," South African Journal of Economics, Economic Society of South Africa, vol. 79(1), pages 50-67, March.
    16. Guangling Liu & Thabang Molise, 2020. "The Optimal Monetary and Macroprudential Policies for the South African Economy," South African Journal of Economics, Economic Society of South Africa, vol. 88(3), pages 368-404, September.
    17. Oladunni, Sunday, 2020. "Oil Price Shocks and Macroeconomic Dynamics in an Oil-Exporting Emerging Economy: A New Keynesian DSGE Approach," MPRA Paper 104551, University Library of Munich, Germany, revised 12 Jun 2020.
    18. Hilary Patroba, 2018. "Credit frictions and co-movement of durable and non-durable goods in a small open economy," Working Papers 730, Economic Research Southern Africa.
    19. Buffie, Edward F. & Airaudo, M. & Zanna, Felipe, 2018. "Inflation targeting and exchange rate management in less developed countries," Journal of International Money and Finance, Elsevier, vol. 81(C), pages 159-184.
    20. Mr. Marco Airaudo & Mr. Edward F Buffie & Luis-Felipe Zanna, 2016. "Inflation Targeting and Exchange Rate Management In Less Developed Countries," IMF Working Papers 2016/055, International Monetary Fund.
    21. Harold Ngalawa & Coretha Komba, 2020. "Inflation‐Output Trade‐Off in South Africa: Is the Phillips Curve Symmetric?," South African Journal of Economics, Economic Society of South Africa, vol. 88(4), pages 472-494, December.

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