On The Drivers Of Inflation In Sub Saharan Africa

The perception that inflation dynamics in Sub-Saharan Africa (SSA) are driven by supply shocks implies a limited role for monetary policy in influencing inflation in the short run. SSA’s rapid growth, its integration with the global economy, changes in the policy frameworks, among others, in the last decade suggest that the drivers of inflation may have changed. We quantitatively analyze inflation dynamics in SSA using a Global VAR model, which incorporates trade and financial linkages among economies, as well as the role of regional and global demand and inflationary spillovers. We find that in the past 25 years, the main drivers of inflation have been domestic supply shocks and shocks to exchange rate and monetary variables; but that, in recent years, the contribution of these shocks to inflation has fallen. Domestic demand pressures as well as global shocks, and particularly shocks to output, however, have played a larger role in driving inflation over the last decade. We also show that country characteristics matter—the extent of oil and food imports, vulnerability to weather shocks, economic importance of agriculture, trade openness and policy regime, among others, help in explaining the role of shocks.

This paper analyzes food inflation trends in Sub-Saharan Africa (SSA) from 2000 to 2016 using two novel datasets of disaggregated CPI baskets. Average food inflation is higher, more volatile, and similarly persistent as non-food non-fuel (NF/NF) inflation, especially in low-income countries (LICs) in SSA. We find evidence that food inflation became less persistent from 2009 onwards, related to recent improvements in monetary policy frameworks. We also find that high food prices are driven mainly by non-tradable food in SSA and there is incomplete pass-through from world food and fuel prices and exchange rates to domestic food prices. Taken together, these finding suggest that central banks in low-income countries with high and persistent food inflation should continue to pay attention to headline inflation to anchor inflation expectations. Other policy levers include reducing tariffs and improving storage and transport infrastructure to reduce food pressures.

Using data collected from pan-African banks’ (PABs), balance sheets and other sources (Orbis, Fitch), this study identifies some key patterns of cross-border investment in bank subsidiaries by key banking groups in sub-Saharan Africa (SSA) and discusses some of the determinants of this investment. Using a gravity model relating the annual value of a banking group’s investment in the net equity of its subsidiaries to a set of explanatory variables, the analysis finds that cross-border banking is in part driven by a search for yield, diversification, and expansion for strategic reasons.

This study examines the drivers of growth in Sub-Saharan African countries, using aggregate data, from the past decade. We correlate recent growth experience to key determinants of growth, including private and public investment, government consumption, the exchange regime and real exchange rate, and current account liberalization, using various econometric methodologies, including fixed and random effects models, with cluster-robust standard errors. We find that, depending on the specification, higher private and public investments boost growth. Some evidence is found that government consumption exerts a drag on growth and that more flexible exchange regimes are beneficial to growth. The real exchange rate and liberalization variables are not significant.

Is there a link between devaluation and high inflation? It depends on accompanying monetary and fiscal policies and the presence of parallel markets. An open capital account would curtail fiscal profligacy and provide price stability without jeopardizing growth.

Low-income countries in sub-Saharan Africa present unique monetary policy challenges, from the high share of volatile food in consumption to underdeveloped financial markets; however most academic and policy work on monetary policy is aimed at much richer countries. Can economic models and methods invented for rich countries even be adapted and applied here? How does and should monetary policy work in sub-Saharan African? Monetary Policy in Sub-Saharan Africa answers these questions and provides practical tools and policy guidance to respond to the complex challenges of this region. Most countries in sub-Saharan Africa have made great progress in stabilizing inflation over the past two decades. As they have achieved a degree of basic macroeconomic stability, policymakers are looking to avoid policy misalignments and respond appropriately to shocks in order to achieve stability and growth. Officially, they often have adopted "money targeting" frameworks, a regime that has long disappeared from almost all advanced and even emerging-market discussions. In practice, though, they are in many cases finding current regimes lacking, with opaque and sometimes inconsistent objectives, inadequate transmission of policy to the economy, and difficulties in responding to supply shocks. Monetary Policy in Sub-Saharan Africa takes a new approach by applying dynamic general equilibrium models suitably adapted to reflect key features of low-income countries for the analysis of monetary policy in sub-Saharan African countries. Using a progressive approach derived from the International Monetary Fund's extensive practice and research, Monetary Policy in Sub-Saharan Africa seeks to address what we know about the empirics of monetary transmission in low-income countries, how monetary policy can work in countries characterized by underdeveloped financial markets and opaque policy regimes, and how we can use empirical and theoretical methods largely derived in advanced countries to answer these questions. It then uses these key topics to guide policymakers as they attempt to adjust food price, terms of trade, aid shocks, and the effects of the global financial crisis.

This paper examines the relative importance of monetary growth and exchange rate depreciation as causes of inflation in a sample of 10 Sub-Saharan African countries. Causality tests and impulse response functions derived from vector autoregression (VAR) analysis suggest that both monetary expansion and exchange rate adjustments cause inflation in a number of these countries. However, the failure of the tests to attribute the bulk of the variance in inflation in most of the countries to either variable suggests either a problem with the statistical technique or that some other factor--perhaps structural bottlenecks or a measure of overall macroeconomic policy stance incorporating both monetary and exchange rate policy--may be even more important as a determinant of inflation in African countries.

This paper explores the sources of inflation in Sub-Saharan Africa by examining the relationship between inflation, the output gap, and the real money gap. Using heterogeneous panel cointegration estimation techniques, we estimate cointegrating vectors for the production function and the real money demand function to recover the structural output and money gaps for seventeen African countries. The central finding is that both gaps contain significant information regarding the evolution of inflation, albeit with a larger role played by the money gap. There is no significant evidence of asymmetry in the relationship.