Cambridge Journal of Economics Advance Access originally published online on November 8, 2006
Cambridge Journal of Economics 2007 31(3):413-422; doi:10.1093/cje/bel027
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The nature of the ADAS model based on the ISLM model
* University of the South Pacific
Address for correspondence: University of the South Pacific, Suva, Fiji; email: raob{at}connect.com.fj
The aggregate demand and supply model (ADAS) is interpreted as a synthesis of the Keynesian and neoclassical models. It uses the ISLM model, without explaining its nature, to derive aggregate demand (AD). It is combined with an aggregate supply (AS) curve to explain price-inflation and output dynamics. This paper argues that neither the AD nor the AS curve is conceptually the same as its microeconomic counterpart and that ADAS is not a synthesis. In fact, ADAS implies that discretionary policy is necessary and that price changes do not perform their traditional negative feedback function.
Key Words: Keynesian and neoclassical models Aggregate demand and supply Monetary policy rule Price adjustments Stabilization policy
JEL classifications: E0, E41, E52
Manuscript received September 9, 2005; final version received May 12, 2006.