Panel Data - Memorial University of Newfoundland
Panel Data - Memorial University of Newfoundland
Panel Data - Memorial University of Newfoundland
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cov( v , v ) σ<br />
ρ= corr( vit<br />
, vis<br />
) = =<br />
var( v ) var( ) σ +σ<br />
it<br />
2<br />
it is u<br />
2 2<br />
vis<br />
u e<br />
(15.27)<br />
The errors are correlated over time for a given individual, but are otherwise<br />
uncorrelated<br />
This correlation does not dampen over time as in the AR1 model<br />
Principles <strong>of</strong> Econometrics, 3rd Edition<br />
Slide 15-44