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.
Increase and decrease in demand are referred to change in demand due to changes in various other factors such as change in income, distribution of income, change in consumerâs tastes and preferences, change in the price of related goods, while Price factor is kept constant Increase in demand refers to the rise in demand of a product at a given price.