Suppose an economy has been having very high inflation. The
central bank has decided to decrease the money supply in hopes of
decreasing GDP (the thinking is that by decreasing GDP, it will
lead to lower inflation – no need to make that connection, just
focus on the goal of decreasing GDP). Using the complete Keynesian
model, explain in as much detail as possible what will likely
happen to the economy (including GDP, the interest rate, investment
spending, any multiplier...