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...

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...

Keynes made it crystal clear in his comments on the draft copy of Pigou’s future 1937 article in the Economic Journal that Pigou’s fundamental error was to have two different theories of the rate of interest, one determined by the demand and supply of money, and the other one determined by...

Keynes ‘s first paragraph in his letter of the 9th of November, 1936, to Joan Robinson is the following two lines: “I beg you not to publish. For your argument as it stands is most certainly nonsense.”Anyone who reads this correspondence will soon realize that it was simply impossible for...