The African Business Review May-Jun 2014 | Page 15

and inflation rate in WAMZ. Our findings shows that a 100% increase (decrease) in income leads to 66.7% rise (fall) in inflation. This implies that increased income stimulates production, which tends to increase the aggregate demand and thus bring about increased inflation in WAMZ. This finding is in line with our a-priori expectation and in tandem with finding of Kaehler (2010). Own interest rate exerts a negative impact on inflation in WAMZ. The own inters rate captures the opportunity cost Of the all licensed financial institutions in WAMZ, about 60% of these operate in Nigeria. Nigeria accounts for 87% of total commercial banks assets; Ghana has a share of 10%, while other countries combined account for about 3%. This indicates that the issue of contagion cannot be overruled as bank runs in Nigeria can spill over to other countries in WAMZ. of holding money and it is expected to have a negative effect on inflation. The relationship between own interest rate and inflation is statistically sign