The dominant ideas in development economics have changed considerably over the four decades of its existence. Similarly, the influence of theory on policymaking has also changed, not only with new ideas, but more importantly, with the ideological preferences of those with power and influence, especially at the international level. During the eighties, development economics-which has emphasised market failures and other welfare reasons for judicious state intervention to ensure greater equity and efficiency-was under siege from the intellectual assault of market neo-conservatives in control of the major international economic institutions such· as the World Bank and International Mo...