Keynes on endogenous money and interest rates

The paper examines Keynes' views on the ability of the monetary authority to control the amount of money in circulation and the level of the interest rates. It wants to evaluate whether Keynes could agree on the assumption that the money supply function has a horizontal slope, whether his position can be located in one of the sides of the recent postkeynesian debates on the ability of the central bank to control the money supply, and whether it is this part of his contributions that makes his work depart from the traditional neoclassical approach