Once known as the Gold Coast, Ghana is a key player in the international gold market and Africa’s second-largest producer. In 2013, 86.6% of export revenues from the mining sector came from gold, making the metal the top export and source of foreign currency. Gold generated $4.2bn in 2013, compared with $3.2bn from oil and $1.3bn from cocoa. Growth has been hampered in recent years by external...