(d) Now let's go to equilibrium. What is the generic definition of a competi- tive equilibrium? (e) Define the IS curve and graphically derive it. (f) Graph the Y's curve with the IS curve and show how you determine the real interest rate. (g) Suppose there is an increase in Yt. Show how this affects the equilibrium real interest rate. Explain the economic intuition for this. (h) Now let's tell a story. Remember we are thinking about this one good as fruit. Let's say that meteorologists in period t anticipate a hurricane