Consider an oil-exporting economy in its long-run equilibrium. Which of the following explains the ultimate short-run effect of a decrease in international oil price on the GDP of this economy? O The GDP will ultimately increase. The GDP will ultimately decrease. O The effect on GDP will be ambiguous. O The GDP will ultimately be at potential output.Which of the following policies will boost the output in the economy in the short-run: O Increase in the required reserve ratio or increase in the interest rate on loans to commercial banks from by central bank. open market action of the central bank in the form of selling assets. O Increase in the required reserve ration or open market action of the central bank in the form of selling assets. O Open market action of the central bank in the form of buying assets or decrease in the required reserve ratio.Consider a non-oil-exporting economy in its long-run equilibrium. Which of the following explains the ultimate short-run effect of a decrease in international oil price on the GDP of this economy? O The GDP will ultimately decrease. O The GDP will ultimately increase. O The effect on GDP will be ambiguous . The GDP will ultimately be at potential output, in the absence of downward- sticky wages .Consider an oil-exporting economy in its short-run equilibrium. What does our model predict as the effect on the economy's Gross Domestic Product (GDP) in the short-run when the international price of oil drops and the effect of such a shock on demand side is substantially large than on the supply side? O The change in GDP is unclear. O GDP increases. O GPD decreases . GDP will not be substantially affected as ultimately the Transition/Adjustment effect will bring the GDP back to its original level.What is the effect on the Aggregate Expenditure (AE) graph and AE level, of a reduction in net exports caused by increase in the price level in an economy where there is foreign trade? O The original AE graph shifts down, AE level declines along the new AE graph . O The original AE graph shifts up, AE level increases along the new AE graph. No change in AE graph, AE level increases along the original AE graph. )No change in AE graph, AE level decreases along the original AE graph