This article first describes the history of the use of the term ‘new institutional economics’ (NIE) since its introduction by Oliver Williamson. It shows how the term has evolved from a generic term to a standard term on the basis of NIE conference publications and collective volumes that appeared between 1984 and 1997. In 1997, the International Society for New Institutional Economics was founded. Ronald Coase, Douglass North and Oliver Williamson were the driving force behind this development. In the second part of this article, the meaning of the NIE is outlined according to the basic concepts of Williamson and North. The ideas of these two protagonists are compared with each other and their better-known criticisms are described and assessed. The final part of the article deals with possibilities for broadening and deepening the objectives and analytical style of the NIE. It concludes with the observation that the potentialities of the NIE are far from being exhausted.
