increasing investment in the economy causes the capital stock to rise 2 an unexpected increase in the price of natural gas 6 Question 35 (2.5 points) 6 Short-run macroeconomic equilibrium occurs when at the potential real GDP level 12 the equilibrium lies on the long-run aggregate supply curve. 14 15 I structural and frictional unemployment equal zero. aggregate demand and short-run aggregate supply intersect. 18 2012 Question 36 (2,5 points) Saved Hurricane Katrina destroyed oil and natural gas refining capacity in the gulf. This subsequently drove up natural gas, gasoline, and heating oil prices which are the key Inputs in production. As a result, this should