By now it has become obvious that Federal Reserve actions have an
immense impact on the functioning of our economy. As a result, a great
deal of research has been done on the Fed and on monetary policy. Much
of this work is normative; it tells us what the Fed should do. Positive
work on the Fed has usually tried to elucidate particular Fed policies,
and has not tried to present a theory of why the Fed behaves the way it
does. The dominant theory of Fed behavior is that the Fed does what it
believes to be best for the public welfare. This theory - usually left
implicit - is so simple, and seemingly so obviously correct, that it has
received widespread credence without extended discussion or tests. When
thinking about govern- ment in general many observers doubt that it
nearly always acts in the public interest. However, they ascribe this
unfortunate state of affairs mainly to political pressures. Since the
Fed is relatively removed from such pressures, the public interest
theory of government seems more applicable to it.