This book is written in honour of Richard Arena, Professor of Economics at the University of the Côte d'Azur and a specialist in the history of economic thought. Written by distinguished scholars and historians of economic thought, this volume covers various scientific topics that Richard Arena has dealt with during his 40 years of academic activity. It features contributions on the theory and history of economic analysis, covering economic thinking from the 19th and 20th centuries through the post-war period to Cambridge economics and the Sraffa period. It also includes contributions on economic modelling, economic philosophy and ontology. This book will be of interest to anyone interested in the history of economics and, in particular, the work of Richard Arena.