We show theoretically that the presence of basis risk in index insurance makes it a complement to informal risk sharing, implying that index insurance crowds-in risk sharing and leading to a prediction that demand will be higher among groups of individuals that can share risk. We report results from Ethiopia from a first attempt to marketweather insurance to informal risk-sharing groups.

Full Publication In various forms microinsurance has been available to some low-income people in Africa for a number of years. Cooperative Insurers have serviced a market that spans the income ranges since the 1970s. In the 1980s, community-based health insurance schemes, especially in West Africa, followed the Bamako Initiative. In the mid-1990s, commercial insurers began to enter the market offering specialized microinsurance products. Informal microinsurance has been available for decades in a range of forms, from “tontines” in West Africa or “friend in need” groups in East Africa to burial

Having enough food in East Africa depends largely on the productivity of smallholder farms, which in turn depends on farmers’ ability to invest in their farms. Weather insurance can encourage farmers to make these critical investments by improving their access to credit. The Global Index Insurance Facility (GIIF)—an IFC/IBRD collaboration housed under IFC’s Access to Finance’s Global Retail/Microfinance Cluster—is an innovative program that is expanding access to insurance against weather risks and natural disasters to farmers, livestock herders, and others, particularly in Africa and the