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Title:Weak and strong cross section dependence and estimation of large panels PDF Logo
Authors:Chudik, Alexander
Pesaran, Mohammad Hashem
Tosetti, Elisa
Issue Date:2009
Series/Report no.:CESifo working paper 2689
Abstract:This paper introduces the concepts of time-specific weak and strong cross section dependence. A double-indexed process is said to be cross sectionally weakly dependent at a given point in time, t, if its weighted average along the cross section dimension (N) converges to its expectation in quadratic mean, as N is increased without bounds for all weights that satisfy certain granularity conditions. Relationship with the notions of weak and strong common factors is investigated and an application to the estimation of panel data models with an infinite number of weak factors and a finite number of strong factors is also considered. The paper concludes with a set of Monte Carlo experiments where the small sample properties of estimators based on principal components and CCE estimators are investigated and compared under various assumptions on the nature of the unobserved common effects.
Subjects:panels
strong and weak cross section dependence
weak and strong factors
JEL:C10
C31
C33
Document Type:Working Paper
Appears in Collections:CESifo Working Papers, CESifo Group Munich

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