AbstractTanzania did not have the kind of agricultural policies, popular participation, or government bureaucratic capacity necessary for integrated rural development projects to perform well. Nonetheless the World Bank, EEC, and United States each implemented such projects there during the 1970s. The implementation and achievements of the projects varied considerably due to differences in their design as well as decisions made by the implementation teams. However the experiences of all three projects demonstrate two things: no agricultural development project can adapt to producer price disincentives; and both participation and project management require a ‘critical minimum’ level of finance and resources which the Tanzanian bureaucracy does not have. The latter observation raises the question of whether donors should attempt to build management capacity in fourth world bureaucracies or, as Goran Hyden suggests, avoid the government and work through other institutions and local organizati