1. How does Fishers quantity theory of money differ from the Keynes quantity theory of money? 2. Using simple equations, explain how an expansionary monetary policy by the central bank that did not translate into an improvement in aggregate output can trigger higher inflation in the economy. 3. The Bank of Ghana (BoG) raised the required reserve ratio in 2014 from 9% to 11%. However, in 2020 BoG announced a reduction of the required ratio to 8%. Under what conditions will a central bank increase or decrease the required reserve ratio. Explain in detail. 4. If the interbank rate in an economy equals the interest rate on reserves, then an expansionary monetary policy will increase the interbank rate. True or False. Explain in your own words