Using aggregate demand, SRAS and LRAS, and assuming the economy is initially at long run equilibrium, explain the process by which each of the following economic events will move the economy from one long-run macroeconomic equilibrium to another with the aid of a well labeled diagram.

1. There is a decrease in household's wealth due to a decline in the stock market.
2. The government lowers taxes, leaving households with more disposable income.
3. There is increase in the quantity of money.
4. There is increase in government spending.