An econometric model is used to assess the short-term (impact), interim, and cumulative effects of food aid on the economy of Tunisia for the period 1960-92. Food aid displaced neither domestic production nor commercial imports of food grains. Rather, food aid provided incentives to promote growth through its income and policy effects. Food aid provided increased public revenue that enabled the government to take an active role in domestic pricing, preventing disincentive prices and promoting domestic production. The results indicate a positive role for food aid when disincentive effects are managed through public policies.