Suppose that this years money supply is $500 billion, nominal GDP is $10 trillion, and real GDP is $5 trillion. a. What is the price level? What is the velocity of money? b. Suppose that velocity is constant and the economys output of goods and services rises by 5 percent each year. What will happen to nominal GDP and the price level next year if the Fed keeps the money supply constant? c. What money supply should the Fed set next year if it wants to keep the price level stable? d. What money supply should the Fed set next year if it wants inflation of 10 percent?
Mediator  - Behavioral Intent Define an object that encapsulates how a set of objects interact. Promotes loose coupling by keeping objects from referring to each other explicitly and lets you vary their interaction independently. Initial Comments May be most used Design Pattern. What makes OOP OOP is the interaction between objects in the system. That interaction is usually defined by the behavior of particular objects - moreso when it’s a small number of objects. When the number grows, it may make for poor design to encumber classes with concepts outside of their core abstraction. Where should the behavior be localized One possibility of the Mediator. However the existence of the Mediator Pattern is not a valid excuse for partitioning responsibilities to appropri