For the majority of the 1.4 billion of the world’s poor agriculture is the main source of income and employment. Many farmers live in areas lacking access to basic financial services, leaving them vulnerable to shocks and prone to low-risk, low-return investments. Improving access to financial services can help farmers make profitable investments that increase their yields. At a macro level, higher yields increase the total global supply of food. At a micro level, higher yields increase household income and food security for the world’s 1.5 billion living in smallholder households.