Is Marx’s Theory of Profit Right provides a revealing insight into the way in which the debate between leading TSSI proponents and some of their principal critics has been conducted since the start of this century…. The collection will most likely leave the reader quite impressed with the serious attitude of its TSSI-adherent editors, Nick Potts and Andrew Kliman, for republishing their opponents’ articles, allowing the reader to accurately form her or his own opinion…. Is Marx’s Theory of Profit Right serves two equally important purposes: not only does it allow the skeptical reader to verify with her or his own eyes the utter inability of the TSSI’s critics – thus far – to provide its proponents with an adequate response. It also stands as valuable evidence of the unscholarly and even unscientific methods of some, if not many, in the field of economics. Personally, I stand by one of the closing remarks of Kliman and Freeman in their final article: the debate is over.

Marx and Philosophy Review of Books

This book, and the wider literature on which it draws, should be compulsive reading for all those who believe Marx’s theory is simply wrong, and be compulsory reading for all those who disdain his work and yet claim to study capitalism scientifically.

Robert Bryer, Warwick Business School

Potts and Kliman have assembled a revealing collection of exchanges in a significant but mathematically challenging debate over the 'transformation problem', in which the fundamental issue is the validity of Marx's labor theory of value. The controversy also demonstrates the inherently political nature of scientific disputation.

Rick Kuhn, Australian National University, Winner of the Deutscher Prize for Henryk Grossman and the Recovery of Marxism

This book is essential reading for anyone interested in prising Marx out of the clutches of so-called Marxists who misunderstand and reject the most fundamental discovery of Marx: that the historical differentia specifica of capitalism is the production of value and that this is a deeply contradictory process. And prising Marx out of the clutches of such ‘Marxists’ has never been more important than today, when capitalism appears to have exhausted whatever potential it had to deliver broad-based material welfare.

Radhika Desai, University of Manitoba