Answer:
Aggregate demand refers to the demand for the Gross Domestic Product in a country. In other words, it is the demand for the final goods and services produced in a country within a period.
Order of effect on Aggregate Demand.
1. Development of computer-based technologies from the 1940s to now.
This will have the greatest effect on Aggregate Demand (AD) because it will lead to an increase in the long term capacity of the economy to produce goods and services thereby increasing the demand for those same goods and services.
2. State governments in the 2010s cut their budgets for teachers, infrastructure, police, and other government expenditures.
This will contribute less to AD than the one above but the effect will still be significant because government spending is a significant component of AD so reducing it will reduce AD.
3. Prices of tech stocks increase in the late 1990s as a result of a speculative bubble.
Prices of tech stocks rising will lead to more people buying these stocks thereby increasing the investment portion of AD and having a significant effect on its increase.
4. People notice prices rising and an associated decrease in purchasing power.
If people notice a decrease in purchasing power, they will begin to buy less goods and services as they cannot afford as much. This will reduce Consumption in the AD curve but will not significantly impact AD as the ones above.
5. A trade war with China in the late 2010s leads to a decrease in trade.
A trade war with China will affect the Net exports side of the AD but there will be other countries to trade with and goods will still be purchased from and sold to China in some quantity so the AD will be least affected here.