Meyer, D. F., & Habanabakize, T. (2018). Analysis of Relationships and Causality between Consumer Price Index (CPI), the Producer Price Index (PPI) and Purchasing Manager’s Index (PMI) in South Africa. Journal of Economics and Behavioral Studies, 10(6(J), 25-32. https://doi.org/10.22610/jebs.v10i6(J).2590