Answer the following question:

8 EVALUATION: On a sheet of paper answer, which of the following might have caused the shift in aggregate supply shown in the diagram below? Check all the answers that apply. Explain. 1. An improvement in technology 2. A depreciation of exchange rates Price level 3. An increase in costs 4. A reduction in government expenditures 5. A cut in income tax 6. An increase in wage levels P1 AD Y2 Y1 Real national output