Answer the following questions:

Explain the effects of the following events on Aggregate Demand or Aggregate Supply curves (AD/SRAS decrease or increase)

Specify the shift in AD/SRAS curve and indicate what happens to the equilibrium price level and real GDP

a- A significant appreciation of the exchange rate

b- Investment increase after the Governmentt decided to remove many business barriers

c- Households expect lower prices in the future

d- High temperature in mos KSA cities supplying oil