Does Money Matter in Africa? New Empirics on Long- and Short-run Effects of Monetary Policy on Output and Prices

Purpose – While in developed economies, changes in monetary policy affect real economic activity in the short-run but only prices in the long-run, the question of whether these tendencies apply to developing countries remains open to debate. In this paper, we examine the effects of monetary policy on economic activity using a plethora of hitherto unemployed financial dynamics in inflation-chaotic African countries for the period 1987-2010. Design/methodology/approach – VARs within the frameworks of VECMs and simple Granger causality models are used to estimate the long-run and short-run effects respectively. A battery of robustness checks are also employed to ensure consistency in the specifications and results. Findings – But for slight exceptions, the tested hypotheses are valid under monetary policy independence and dependence. Hypothesis 1: Monetary policy variables affect prices in the long-run but not in the short-run. For the first-half (long-run dimension) of the hypothesis, permanent changes in monetary policy variables (depth, efficiency, activity and size) affect permanent variations in prices in the long-term. But in cases of disequilibriums only financial dynamic fundamentals of depth and size significantly adjust inflation to the cointegration relations. With respect to the second-half (short-run view) of the hypothesis, monetary policy does not overwhelmingly affect prices in the short-term. Hence, but for a thin exception Hypothesis 1 is valid. Hypothesis 2: Monetary policy variables influence output in the short-term but not in the long-term. With regard to the short-term dimension of the hypothesis, only financial dynamics of depth and size affect real GDP output in the short-run. As concerns the long-run dimension, the neutrality of monetary policy has been confirmed. Hence, the hypothesis is also broadly valid. Practical Implications – A wide range of policy implications are discussed. Inter alia: the long-run neutrality of money and business cycles, credit expansions and inflationary ...