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Trend shocks and business cycles in Sub Saharan Africa


  • Claude Francis Naoussi

    () (LEMNA - Laboratoire d'économie et de management de Nantes Atlantique - UN - Université de Nantes)

  • Fabien Tripier

    (LEMNA - Laboratoire d'économie et de management de Nantes Atlantique - UN - Université de Nantes)


This article explores the role of trend shocks in explaining the specificities of business cycles in Sub-Saharan African (SSA) countries using the methodology introduced by Aguiar and Gopinath (2007) [Emerging Market Business Cycles: The Cycle Is the Trend Journal of Political Economy 115(1)]. We specify a small open economy model with transitory and trend shocks on productivity to replicate the differences in the business cycle behavior of output and consumption across countries, especially the excess volatility of consumption in SSA countries. Our results suggest a strong relationship between the weight of trend shocks in the source of fluctuations and economic development. The weight of trend shocks is (i) higher in SSA countries than in emerging and developed countries; (ii) negatively correlated with the level of income, the quality of institutions, and the size of the credit market; and (iii) uncorrelated with the aid received by countries, the ratio of trade-openness, the inflation rate, and government spending.

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  • Claude Francis Naoussi & Fabien Tripier, 2010. "Trend shocks and business cycles in Sub Saharan Africa," Working Papers hal-00546287, HAL.
  • Handle: RePEc:hal:wpaper:hal-00546287
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    Business cycle; Permanent shocks; Growth; Africa; Small open economy;

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