How did Hicks's IS-LM model influence macroeconomics?
The IS-LM model provided a powerful graphical framework to integrate the Keynesian theory of aggregate demand with the classical theory of interest rates. By depicting the equilibrium conditions in both the goods market (IS curve) and the money market (LM curve), it offered a clear way to analyze the effects of fiscal and monetary policies on national income and interest rates. It became a standard tool for teaching and analyzing macroeconomic phenomena for decades.
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