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st: data management

From   somsupa Nopprach <>
Subject   st: data management
Date   Fri, 16 Mar 2007 04:28:27 -0700 (PDT)

Thank you Prof. Maarten Buis very much for your
  I just realized that some of my lines were be
cut.Sorry for my mistake.

  For example, I have data like this.
Parent firms  Capital  Affiliate       Country    Year
AAA           233        aa         Thailand   1997
AAA           100        ab         Thailand   1996
AAA           200        ac         Malaysia   2000
BBB            50        ba        Philippines 1995
CCC            80        ca        Indonesia    1996
and so on.

I would like to analyze the location choice
determinants of parent firms' repeated investment

  I  thought that  I   should run conditional logit
and use option-group(Parent firms.  By the way,I do
not sure that this method is correct or not. 

  In addtion, if I would like to not include data that
does not have repeated investment like Parent firm
"BBB". How I can limit sample range in conditional
logit model?

I am very appreciated any comments and suggestions.

 Thank you very much.

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