Relier Pairs Trial 5Version en ligne Trial 5 par Martin Smith 1 Joseph Bado: if you are lucky, tomorrow you may find a rock like that, worth about 3000 US dollars: 2 It’s not the first time that artisanal mining has helped develop agricultural and small-scale economies. In the 19th century, mining helped establish railroad and banking systems, 3 But that shift can come with consequences. 4 But to do that from cocoa farming would take four years. that transformed the economies of countries like America, Australia and South Africa. and you can pay for a motorbike, nice clothes and a good life. They are not comparable.