Africa has more countries than any other continent, and hence the largest number of potential monetary and exchange rate arrangements. This paper looks at whether the existing highly fractured monetary arrangements in Sub-Saharan Africa correspond to what might be expected from the theory of optimum currency areas. This is done by analyzing both the size and correlation of real disturbances across countries and the level of intra-regional trade. The results indicate little evidence that Sub-Saharan African countries would benefit in the near future from larger currency unions.

Africa has more countries than any other continent, and hence the largest number of potential monetary and exchange rate arrangements. This paper looks at whether the existing highly fractured monetary arrangements in Sub-Saharan Africa correspond to what might be expected from the theory of optimum currency areas. This is done by analyzing both the size and correlation of real disturbances across countries and the level of intra-regional trade. The results indicate little evidence that Sub-Saharan African countries would benefit in the near future from larger currency unions.

The sources of macroeconomic fluctuations in sub–Saharan African are examined by comparing the CFA franc countries with the non–CFA franc countries. External shocks, especially terms of trade shocks, appear to have a greater influence on fluctuations of output and the real exchange rate in CFA franc countries. This result does not appear to be associated with differences in the economic structure but may reflect the fixed exchange rate regime, which does not (partially) buffer these countries from external shocks. Macroeconomic fluctuations in non–CFA franc countries are similar to those in other developing countries, particularly in Latin America.

We compare business cycle fluctuations in Sub-Saharan African (SSA) countries vis-à-vis the rest of the world. Our main results are as follows: (i) African economies stand out by their macroeconomic volatility, which is is reflected in the volatility of output and other macro variables; (ii) inflation and output tend to be negatively correlated; (iii) unlike advanced economies and emerging markets (EMs), trade balances and current accounts are acyclical in SSA; (iv) the volatility of consumption and investment relative to GDP is larger than in other countries; (v) the cyclicality of consumption and investment is smaller than in advanced economies and EMs; (vi) there is little comovement between consumption and investment; (vii) consumption and investment are strongly positively correlated with imports.

This analysis of the extent of trade integration of sub-Saharan African (SSA) countries in the global economy as well as within the region over the 1995–2013 period focuses on four key concepts: (1) trade openness, captured by import and export flows; (2) the centrality in the global and regional trade network, a measure that takes into account not only the size of trade but also the number of trade partners and the respective weight of these trade partners in global trade; (3) gravity model estimates that account for country- and region-specific determinants of bilateral trade flows; and (4) global value chain (GVC) integration. Using both existing data and a newly available dataset based on multiregion input and output tables, this analysis led to several findings: (1) trade openness has increased strongly; (2) integration in the global economy has made the region more vulnerable to external shocks; (3) levels of trade flows emanating from sub-Saharan Africa are still only half the magnitude of those experienced elsewhere in the world; (4) the region still has ways to go to better integrate in GVCs; and (5) it is more critical than ever to make progress in filling the infrastructure gap by lowering tariff and nontariff barriers, improving the business climate and access to credit, and continuing to enhance education outcomes.