st: Thanks Maarten: a quick follow-up

["Nihal Pitigala" <pi.gala@hotmail.com>]

Thanks Maarten, I have a brief follow-up question you'll see at the end of 
the paragraph. I certainly would refere to XT manual on xtmixed. Looks like 
you  I need laymans manual.  Can you give me a laymans explanation to 
estimations such as differencing 1997 and 2001.  especially, some tips on 
commands and some intution.Thanks very much again. this will help. See 
belowhow my data is..I have 47 reporters, 65 partner countries, but also 
also broken down at sector level.


LnVSikj =  Ai+   ��1LnTarOik  +   ��2LnTarPikj +  ��3LnICTikj +    
��4LnInfrOijk+  ��5LnInfPijk

+ ��6LnResik +  ��7LnCapik +  ��8LnPolik  +��9LnFinik +��10LnGDPik + 
��11LnRemotijk  (4)  +     Uijk




> Nihal Pitigala:
> If the data is set up as in the example you show, than you are ready to go:
> just type -reg LnTrade LnTariff LnTransports- (without the hyphens). You
> might want to consider moving into crossed random effects here using
> -xtmixed-, since each pair of countries is nested within its constituent
> countries plus each pair consists of multiple entries, which are again 
> nested
> within sector. The entry for -xtmixed- in the XT manual is good in 
> explaining
> how to set that model up.
> HTH,
> Maarten
>
> -----------------------------------------
> Maarten L. Buis
> Department of Social Research Methodology
> Vrije Universiteit Amsterdam
> Boelelaan 1081
> 1081 HV Amsterdam
> The Netherlands
>
> visiting adress:
> Buitenveldertselaan 3 (Metropolitan), room Z434
>
> +31 20 5986715
>
> http://home.fsw.vu.nl/m.buis/
> -----------------------------------------
>
> --- Nihal Pitigala wrote:
> Data is in the following format:
>
> Country  Partner       GTAP SectorLn  Trade(LHS)        LnTariff            
>  Ln Transports
> Albania   Australia       21 agro            -3.178341688    2.546306314    
>  1.941615225
> Albania  Australia        22 milk            -4.937585181     3.714802733   
>   2.385086315
> <snip>
>
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