Weak and Strong Cross Section Dependence and Estimation of Large Panels

Alexander Chudik (), M Hashem Pesaran () and Elisa Tosetti ()

No CESifo Working Paper No. 2689, CESifo Working Paper Series from CESifo Group Munich

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.

Keywords: panels; strong and weak cross section dependence; weak and strong factors (search for similar items in EconPapers)
JEL-codes: C10 C31 C33 (search for similar items in EconPapers)
Date: 2009
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Related works:
Working Paper: Weak and Strong Cross Section Dependence and Estimation of Large Panels (2009)
Working Paper: Weak and Strong Cross Section Dependence and Estimation of Large Panels (2009)
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