Aron, Janine (contributor); Muellbauer, John (contributor); … - 2004 - [Elektronische Ressource]
(2.1)
Suppose the sign prior is that X has a non-negative short-term and long-term effect on Y � for
instance, let Y … be log (CPI) and let X be log (WPI). We would then expect
0
β to be non-
negative, and could impose 0
0
≥β as a …
t
maX )2(γα . Such moving averages can be sensible when the X variable is quite volatile, or
where aggregation over …