After a month, serum total PSA value was 1.2 ng/ml. In another blood test after 3 months, serum total PSA value rose to 7 ng/ml with a percent free PSA of 40%. The urologist recommended a transrectal ultrasound-guided prostate biopsy. The patient refused biopsy.
Of the four components of aggregate demand, consumption expenditure C is the largest contributing to between 60% and 70% of total expenditure. For this reason, we often start our analysis with this particular component.
Aggregate demand is the total quantity of goods and services demanded in an economy at a given price level. If you plot the quantity demanded at each price level on a graph and connect the data points, you'll get what's called an aggregate demand curve. An aggregate demand curve is downward sloping.