make a nice comment about his summary how did he do? 50 words.. 11-1 Neoclassical economists highlight the principle that supply generates its demand, while Keynesians emphasize the concept that demand creates its supply. Mainstream economists adopt a balanced approach, prioritizing aggregate demand in the short term and aggregate supply in the long term. 11-2 In the short run, the upward-sloping short-run aggregate supply (SRAS) curve depicts the direct correlation between the price level and real GDP. The aggregate supply curve inclines due to increased output profitability with rising output prices. In the long run, aggregate supply is represented by a vertical line at potential output. Conversely, the downward-sloping aggregate demand (AD) curve shows the inverse relationship between price level and total spending, driven by wealth, interest rate, and foreign price effects. 11-3 The AD/AS diagram illustrates the interaction between aggregate demand (AD) and aggregate supply (AS). Their intersection determines the economy's equilibrium output and price level. Movements in AS or AD lead to different equilibriums. AS shifts right with increased productivity, left with higher input prices, and right again with lower input prices. A leftward shift causes stagflation, while a rightward shift enables lower inflation, higher output, and lower unemployment. 11-4 The AD curve shifts right with increased components of aggregate demand and left with decreased components, influence