Keynes's initial, introductory presentation of his inexact measurement, approximation approach to interval valued probability occurred on pages 38-40 of chapter III of the A Treatise on Probability. Keynes used a simple diagram on page 38 to illustrate the non linear and non additive nature of...

The Post Keynesian, Institutionalist and Heterodox schools of economics have failed for 83 years to discern the definition of uncertainty given by Keynes in footnote 1 on page 148 of the General Theory that was repeated on page 240 of the General Theory.The footnotes on page 148 and 240 of the...

J M Keynes's two logical relations of rational degree of probability, α, 0≤α≤1 and Evidential Weight of the Argument, w, 0≤w≤1, where w measures the degree of completeness of the evidence, can't be represented or associated with ordinal probability, although Keynes's theory of...