Abstract
This paper assesses our state of knowledge concerning the ‘New Public Management’ (NPM) reforms which seem to have been launched in so many countries. In the first section it appraises the types of materials available as a basis for such an assessment. It then considers, and rejects, the thesis that, because of the improved performance they bring, these reforms are global in reach and inevitable in nature. Subsequently, the main part of the paper assesses the available evidence with respect to a number of key dimensions of reform impacts. It concludes that, while there is evidence of specific improvements in particular instances, the general case for NPM as a solution to diverse problems of governance in many different countries is far less firmly established than is commonly supposed.