For example, around 200 supermarkets and 10 hypermarkets sell the equivalent of 90,000 small shops and account for up to 30 per cent of Kenya’s food retail market (UNDP, 2012). Knowledge sharing between lead firms and suppliers will be important for upgrading Africa’s food production and its ability to compete in global markets (UNECA, 2013). Contract farming is becoming more common, but in many places small farmers face barriers to entry.