Efforts are also being made to deploy similar measures to other cross border vectors including: 1  Pedestrian radiation portal monitoring. 2  Air freight radiation portal monitoring. 3  Crane based radiation portal monitoring. 4  Air luggage radiation portal monitoring. 5  Railway radiation portal monitoring.
All of these factors are macroeconomic factors that may increase the aggregate demand. Monetary policies cause increases in aggregate demand because the central bank of a country uses this particular economic factor as a tool to manipulate the spending of the citizens in a country.
What changes in the components of aggregate demand may shift the AD curve? - Changes in income - Changes in interest rates (If there is an increase in interest rates then there is likely to be less borrowing because it is more expensive to borrow) Therefore consumption will fall, resulting in a fall in AD.