macro ad/as model

Topics: Supply and demand, Economics, Macroeconomics Pages: 2 (494 words) Published: December 4, 2013
Let us first understand the components of the AD/AS model, so we can determine and identify the factors which play a part in the level of output in the economy, and learn how the government intervenes in order to implement macro-policies in order to increase output, and the effects of these policies on the economy. The AD/AS model shows the combinations of both the aggregate demand curve and the aggregate supply curve. The aggregate demand curve shows the combinations of the price level and level of output at which both the money market and good market are in equilibrium, while the aggregate supply curve shows for each given price level the amount of out of output the firms are willing to supply. As mentioned in the 10th edition of macroeconomics by Mc Grawhill “the aggregate supply –aggregate demand model is the basic macroeconomic tool for studying output fluctuations” (Pg. 98, Macroeconomics, Rudiger Dornbush).

Let us first understand the market equilibrium price of the product and then identify and analyze how factors such as change in demand and supply, elasticity, separating and pooling equilibrium, market structure determine the price of a good or service. In free market, equilibrium price is the price at which there is no surplus or shortage and therefore quantity demanded equals quantity supplied (Sloman 2008). At equilibrium, any change in quantity demanded or quantity supplied will move the market towards disequilibrium Let's work through an example. For this example, refer to . Notice that we begin at point A where short-run aggregate supply curve 1 meets the long-run aggregate supply curve and aggregate demand curve 1. The point where the short-run aggregate supply curve and the aggregate demand curve meet is always the short-run equilibrium. The point where the long-run aggregate supply curve and the aggregate demand curve meet is always the long-run equilibrium. Thus, we are in long-run equilibrium to begin.

Now say that the Fed pursues...
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