In 2007, the Federal Reserve lowered interest rates in order to stimulate the economy. Which of the following is a possible explanation as to why this policy failed to restore the economy to long- run equilibrium a. since monetary policy shifts the aggregate demand curve, it was not able to deal with the aggregate supply issues that led to the Great Recession, b. the cut in interest rates was accompanied by very loose fiscal policy c. the cut in interest rates shifted the long run aggregate supply curve too far. d. since monetary policy shifts the aggregate supply curve, it was not able to deal with aggregate demand issues that led to the Great Recession.

Aproduction line has three machines a, b, and c, with reliabilities of .96, .86, and .85, respectively. the machines are arranged so that if one breaks down, the others must shut down. engineers are weighing two alternative designs for increasing the line’s reliability. plan 1 involves adding an identical backup line, and plan 2 involves providing a backup for each machine. in either case, three machines (a, b, and c) would be used with reliabilities equal to the original three. a. compute overall system reliability under plan 1. (round your intermediate calculations and final answer to 4 decimal places.) reliability b. compute overall system reliability under plan 2. (round your intermediate calculations and final answer to 4 decimal places.) reliability c. which plan will provide the higher reliability? plan2plan1