Seasonal Adjustment in a Stochastic Model

The aim of this paper is to develop a model-based seasonal
adjustment method which will yield the same decomposition formulas
as the descriptive seasonal adjustment procedures proposed in
Schlicht/Pauly (1984) and Schlicht (1981). Hence the duality
between the descriptive and the model-based approaches to seasonal
adjustment referred to in Schlicht (1981) is resolved for this
class of statistical models and descriptive procedures. In
addition, estimates for the weights used in the descriptive
procedures can be obtained in the stochastic framework, in
principle