The document discusses bilateral investment treaties (BITs) and their relationship to foreign direct investment (FDI) flows between countries. It provides an overview of BITs and their main roles in protecting foreign investors and investments. The document then reviews previous research that has found both positive and negative impacts of BITs on FDI. It also includes regional analyses of the relationships between the number of BITs and other international agreements, and FDI flows within the Southern African Development Community and East African Community regions. The conclusion discusses ways Tanzania could potentially update its BIT provisions and policies to better attract foreign investment.