the Friedman-Lucas model, assume that there is an unexpected rise in general uncertainty and a loss of confidence in the financial system in the short term. This shock is unobserved for central banks and private agents in the economy. This shock is unobservable in the sense that it's not directly linked to observable economic indicators like GDP growth, unemployment rates, or inflation. It's more about a change in the general sentiment or expectations among consumers and businesses. a- Faced with this uncertainty, individuals and businesses might choose to increase their holding of cash. In response to this change in the current period, explain what happens to the equilibrium aggregate output, consumption, investment, employment, real wage, real interest rate, and price levels. Explain using diagrams. Give the driver of each shift. (24points) b- Assume that the Central bank observes this shock and wants to keep the Price levels constant, what would be the monetary policy of the bank? Explain graphically (Sketch only the money market in this case) (points)