Aggregate demand is measured by adding consumption, investment, government spending, and net exports (C+I+G+(X-M)). Congress has yet to adopt a contractionary fiscal policy because they want to continue stimulating the economy during recovery from the pandemic recession. The short-run aggregate supply curve slopes downward because in the short-run, a fall in price leads to an increase in quantity supplied as producers take advantage of the opportunity to sell existing inventory at a higher price and quantity.