â¢ Wait three to four weeks before lifting heavy objects or doing strenuous exercise. Get clearance from your doctor before very strenuous activity or manual labor. If you underwent angioplasty to stop a heart attack, your doctor may ask you to take a stress (treadmill) test three to six weeks after your procedure.
Aggregate demand, or AD, is defined as the total amount of goods and services consumers are willing to purchase in a given economy and during a given time period. Sometimes aggregate demand changes in a way that alters its relationship with aggregate supply, or AS; this is called a shift.. Since modern economists calculate aggregate demand using a specific formula, shifts result from changes in the value of the formula's input variables.
Difficulty: E Type: D. Explain how aggregate quantity-demanded falls when the price level increases and the impact this has on interest rates and aggregate output. Aggregate quantity-demanded falls when the price level increases because the higher price level causes the demand for money to rise.With the money supply constant, the interest rate will rise to reestablish equilibrium in the money market. It is the higher interest rate that causes aggregate output to fall.t is a graph that shows the relationship between the aggregate quantity of output supplied by all firms in an economy and the overall price level. Difficulty: E Type: D. Explain why the aggregate supply curve is not a market supply curve.