This book sets out to encourage a debate about the role that economic theory and philosophy of economics can play. A good part of economics consists of theoretical developments which describe completely imaginary worlds and have no connections to actual market economies. If the purpose of theoretical and philosophical analysis in economics is to make a contribution to find out how modern market economies work and which kind of theoretical practice will be useful for the implementation of successful economic policies, a shift both in philosophy of economics and economics itself is needed. Exposing the ungrounded pretensions of the mainstream philosophy of economics, Marqu?s’ carefully argued book is a major contribution to the ongoing debate on contemporary mainstream economics and its methodological and philosophical underpinnings. Even those who disagree with his conclusions will benefit from his thorough and deep critique of the modeling strategies used in modern economics. Lars P?lsson Syll, Malm? University, Sweden Is ‘mainstream philosophy of economics’ only about models and imaginary worlds created to represent economic theories? Marqu?s questions this epistemic focus and calls for the ontological examination of real world economic processes. This book is a serious challenge to standard thinking and an alternative program for a pluralist philosophy of economics.John Davis, Marquette University, USA and University of Amsterdam In recent decades economists have focused he...