please answer with explanation

copyright The Keynesian Cross we reviewed in class is given by the equality of actual output (Y) and Aggregate demand (D) Y=D C=co+cl(YT) EP* D=C+I+G+CA( ,Y_T3YF _TF) where cl denotes the marginal propensity to consume, I, T and G the exogenously given Investment, taxes and government expenditures, E the nominal exchange rate, P and 13* the domestic and foreign price levels. Suppose that due to sudden news about widespread corruption in Country X, investment in that country declines temporarily from l1 to l2 with l2