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		| Andrea  Cerasa | 
	
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		| ''CIPS test for Unit Root in Panel Data: further Monte Carlo results'' | 
	
		| ( 2008, Vol. 3 No.16 ) | 
	
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		| This paper analyzes, through Monte Carlo experiments, the behaviour of Pesaran's CIPS test for the null of a unit root in panel data when (i) the assumption of a single common factor in the specification of the cross-section dependence is violated and (ii) the autoregressive order of the residuals is estimated. The simulation analysis points to the single common factor as a fundamental assumption for a suitable behaviour of the CIPS test and suggests that the test delivers the best performance when the truncation lag is estimated as a deterministic function of the sample size. | 
	
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		| Keywords: | 
	
		| JEL: C2 - Single Equation Models; Single Variables: General 
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		| | Manuscript Received : Jul 12 2007 |  | Manuscript Accepted : Mar 19 2008 | 
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