Home Who We Are Carolina Polo Sierra position Intern Also interested in Food systems transformation hubs Improving cacao and coffee systems through innovations and partnerships Crops for nutrition and health regions Africa Americas Asia Links Improving food and nutrition security from reducing postharvest losses Sweet potato value chain in Kenya Posts by Carolina Polo Sierra Linking farmers and markets in Ethiopia: implementation Linking farmers and markets in Ethiopia: inclusive business models Linking farmers and markets in Ethiopia: the durum wheat value chain view more