Keynes told Hicks very clearly on March 31st, 1937 that Keynes had already done what Hicks had done on page 156 of his 1937 Econometrica paper, which was to add Aggregate Actual Income I (Keynes's Y) into the three equation set comprising Hicks's later version of Keynes's IS-LM model. However,...

Keynes brought all three of the universally recognized elements that are needed to comprise the IS-LM model, the liquidity preference function, the investment function, and investment multiplier, together in Section Four of Chapter 21 of the General Theory. However, this took place only after...

J M Keynes discussed a number of simplifications of his D-Z model in chapter 21 of the General Theory that were comparable to the completely (infinitely) elastic range and synthesis ranges of the standard AD-AS model that is provided in Principles and Intermediate macroeconomics textbooks in...

A.Hansen essentially went wrong in his evaluation of Keynes's work in the General Theory (GT;1936) that dealt with the Liquidity Preference function in chapters 13,14,15,and 21.His basic error occurs when he evaluates Keynes's chapter 14 analysis on pp.179-183 that dealt with the fact that the...

The belief that Hicks generalized Keynes's General Theory with his IS-LM model is contradicted by Keynes's own, explicit IS-LP(LM) model that was presented in Chapter 21 of the GT. This erroneous belief is based on a misreading of Chapter 13 of the General Theory that only considers Keynes's...