PRICE LEVEL 8. Economic fluctuations I The following graph shows a hypothetical economy in long-run equilibrium at an expected price level of 120 and a natural output level of $300 billion. Suppose households suddenly begin to spend less and save more in order to increase saving for retirement. Using the graph, shift the short-run aggregate supply (AS) curve or the aggregate demand (AD) curve to show the short-run impact of the sharp increase in saving. 240 200 160 120 80 AD 40 AS AD -- AS ?