The data in columns 1 and 2 in the table below are for a private closed economy. (1) Real Domestic Output (GDP DI), Billions (2) Aggregate Expenditures, Private Closed Economy, (2) Exports, Billions (4) Imports, (5) Net Exports, Billions Billions Billions $200 $240 $20 $30 -10 250 280 20 300 320 20 350 360 20 400 400 20 450 440 500 480 550 520 2222222 30 -10 30 -10 30 -10 30 -10 30 + -10 20 30 -10 20 30 -10 (6) Aggregate Expenditures, Private Open Economy, Billions b. Now open up this economy to international trade by including the export and import figures of columns 3 and 4. Fill in columns 5 and 6 and determine the equilibrium GDP for the open economy. Instructions: Enter your answers as a whole number. If you are entering any negative numbers be sure to include a negative sign (-) in front of those numbers. What is the equilibrium GDP for the open economy? billion What is the change in equilibrium GDP caused by the addition of net exports? billion c. Given the original $20 billion level of exports, what would be net exports and the equilibrium GDP if imports were $10 billion greater at each level of GDP? Net exports $ 20 billion billion Equilibrium GDP $1 d. What is the multiplier in this example