LRAS $($year $)$ The graph depicts a dynamic aggregate demand $($AD$)$ and aggregate supply $($AS$)$ model of the economy. Suppose that in $2015,$ the economy is in macroeconomic equilibrium, with GDP at GDP $($year $1).$ The Fed projects that in $2016,$ the aggregate demand curve will be AD $($year $2),$ that potential real GDP will be $$15\mathrm{.}23$ trillion $($GDP $($year $2)),$ and that actual real GDP will be $$15\mathrm{.}00$ trillion. LRAS $($year $2)$ SRAS $($year $1$ SRAS $($year $2$ Year By how much does projected potential real GDP exceed actual real GDP in $2016?$ Price level AD year $2$ AD $($year $1)$ difference: trillion GDP $($year $1)$ GDP $($year $2$ Real GDP $($trillions of What could the Federal Reserve do to help the economy reach potential real GDP in $2016$ Conduct contractionary monetary policy to increase interest rates. It cannot aid the economy $.$ Conduct expansionary monetary policy to decrease interest rates $.$