The major problem with this book appears in chapter 4.Chapter 4 purports to analyze chapter 11 of J M Keynes's General Theory(1936).Keynes put forth a Marginal Efficiency of Capital theory(MEC)in this chapter of his book that dealt with the problem of maintaining an optimal stock of capital goods over time.The only formal mathematical technique that could deal with this intertemporal,dynamic problem at the time Keynes was writing was the calculus of variations .Keynes's theory has nothing to do with a MEI(Marginal Efficiency of Investment)approach to investment.Keynes used a two sector calculus of variations approach in his analytic approach to the mec of a particular stock of long lived fixed capital goods.Keynes wrote out his mathematical analysis in English.In 1983,the economics journal HISTORY OF POLITICAL ECONOMY published a paper by S F LeRoy which demonstrated that there was a one to one onto isomorphism between Keynes's English language description of his results and the necessary and sufficient optimality conditions of a calculus of variations approach.Nowhere in this book or in the references at the back of the book is this issue dealt with.Instead,the author simply asserts in chapter 4 that Keynes's analysis is wrong because it does not fit the MEI approach .The author provides no support for his claim.
The other parts of the book cover various economists whom the author views as being pioneers in the Post Keynesian movement.There is, however,no agreement between Post Keynesians,in general,about who was responsible for what development in a certain decade.The assertions of the author then have to be weighed against the assertions of other Post Keynesians,like Paul Davidson.The author admits this,while not recognizing that a reader of his book will not be able to follow the various claims that are made.