| Levels Over Time Projections are similar to
Instantaneous Level Projections, with one important
difference. Whereas Instantaneous Level Projections deal
with the level of something happening at a single date (and
in this way they are really just a lookup), Levels Over
Time Projections deal with the Level of something over
the course of the prevailing timeperiod. This means
that there is more than one of way to determine such a
level, which the functions in this category allow. The
level could, for instance, be the average level over the
period, or it could be the prevailing level at the
beginning or the end. |