International monetary policy spillovers to emerging economies in Sub-Saharan Africa : a global VAR analysis

Abstract

In this paper, we trace the transmission of monetary policy shocks from three prominent sources of global financial and trade shocks (US, Europe, and China) to the two largest emerging economies in Sub-Saharan Africa (SSA) (Nigeria and South Africa). To pursue this study's objective, we employ Global Vector Autoregression (GVAR) model and update the common GVAR database to accommodate selected SSA countries. We report impulse response functions obtained from the model to analyse the responses of inflation, exchange rate, interest rate, and output in the emerging SSA economies to monetary policy shocks emanating from the large open economies. We document some new findings on the relationship between international monetary policy and the behaviour of economic factors in the emerging SSA countries. First, we show that tight monetary policy in the US and EU moderates prices in Nigeria while it is inflationary in South Africa. Second, the impact of the same policy shock is positive and prolonged on the Nigerian Naira and South African Rand. Third, the monetary policy decisions in China and the US have greater influence on the monetary policy in Nigeria and South Africa compared to similar policy decisions in the EU.