In his August 30th, 1935 letter to Keynes, Harrod not once, but twice, conceded that Keynes had radically reconstituted the classical and neoclassical theory of the rate of interest by pointing out that the standard theory was one equation short. However, by adding the missing Liquidity...

Extreme mathematical illiteracy played a basic, fundamental role in the assessments made by Joan Robinson, Ralph Hawtrey and Dennis Robertson of Keynes's Theory of Liquidity Preference, which Harrod described in an August 30 1935, letter to Keynes as a major reconstruction of interest rate...

Joan Robinson did not understand the connection between Keynes's concept of the weight of the evidence from the A treatise on Probability and the concept of the weight of the evidence from the General Theory. She mixed up Keynes's concept of uncertainty, which is based on missing evidence or...