ABSTRACT

The application of a model depends on a certain number of criteria (Chapter 4.5), especially on the horizon of forecast consideration or the number of points to extrapolate. Thus, a oneyear forecast corresponds to:

• 12 values on a monthly basis; • 4 values on a quarterly basis; • 1 value on a yearly basis. • Through a successive aggregation on a monthly basis Dm(t): • Dq(t) quarterly aggregation of Dm(t); • Dy(t) yearly aggregation of Dm(t).