Similar to that of the Big Mac index, we now take a look at Africa’s RMB Milk Index which determines which African currency is undervalued, over valued or fair valued .The latest data shows that currencies in countries such as the Zambian Kwacha and Botswana Pula have gotten more overvalued over the last 5 years. Joining CNBC Africa for more on this is Neville Mandimika, Economist and Fixed Income Strategist at RMB….