In the economy of Eastlandia, the money market is initially in equilibrium when the economy begins to slide into a recession.
a. Using the accompanying diagram, explain what will happen to the interest rate if the central bank of Eastlandia keeps the money supply constant at $\bar{M}_{1}$
b. If the central bank is instead committed to maintaining an interest rate target of $r_{1},$ then as the economy slides into recession, how should the central bank react? Using your diagram from part a, demonstrate the central bank's reaction.