In developing a clear analysis of the practical relations between economics and law, no jurisdictions have been more exemplary than Australia and New Zealand. In this 30-year retrospective of the most important essays of economist Maureen Brunt, lawyers and others occupied with competition issues should find a harvest of insights into the interdependence between law and economics, and the manner in which they should be blended in the courts. The contributions include the following: the development of conceptual schemes that are both economically meaningful and legally operational; in-depth investigation of the core problems of market definition and market appraisal; development of a concept of competition as the inverse of market power; and techniques for making the best use of economists' expert evidence. The essays appear in the order in which they were first published, and thus represent a kind of historical progression, reflecting both developments in Australian and New Zealand law and the depth and scope of the author's own thinking.