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Re: st: any shortcut for oaxaca decomposition


From   Christer.Thrane@hil.no
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: any shortcut for oaxaca decomposition
Date   Tue, 25 Nov 2003 13:27:58 +0100

Hi,

Although I cannot provide a shorcut to your specific question, the commands
-decomp- and -decompose- does the the Oaxaca/Blinder decompositions
automatically. They also offer some extensions.

If you have not installed them, write -findit decomp- on the command line.

Best regards,

Christer

Christer Thrane, dr.polit.
Associate Professor, Sociology
Department of Social Science
Lillehammer University College
2626 Lillehammer, Norway
+ 47 61 28 81 70 (fax)
+ 47 61 28 82 47 (phone, work)
+ 47 61 25 68 44 (phone, home)
+ 47 92 29 54 39 (mobile)
E-mail, work: christer.thrane@hil.no
E-mail, home: ch-thran@online.no



                                                                                                                                               
                      "Ada Ma"                                                                                                                 
                      <pelikan_4001@hotmail.com        To:       statalist@hsphsun2.harvard.edu                                                
                      >                                cc:                                                                                     
                      Sent by:                         Subject:  st: any shortcut for oaxaca decomposition                                     
                      owner-statalist@hsphsun2.                                                                                                
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                      25.11.2003 13:19                                                                                                         
                      Please respond to                                                                                                        
                      statalist                                                                                                                
                                                                                                                                               
                                                                                                                                               




Hi,

I am doing some oaxaca decompositions and I'm looking for some shortcuts,
thus I ran the two following estimations:

[1] separate estimations for male and female: wage = alpha + beta1*gamma +
beta2*zeta

[2] one estimation, but with interactive dummies (female = 1 for women)
     wage = alpha + beta1*gamma + beta2*zeta + beta3*female +
beta4*female*gamma + beta5*female*zeta

Now my question is why is it that the estimated beta1 in [2] differ from
that of beta1 in the male estimation in [1]?  And why is it that the
summation of beta1 and beta4 in estimation [2] would equal to beta1 for
females in estimation [1]?

I know I'm making different assumptions regarding the error terms in
estimations [1] and [2], but what elses are driving the differences?

Many thanks in advance.

Cheers,
Ada Ma

-----------------------------------------
Dept of Econ
Univ of Aberdeen
Pelikan_4001@hotmail.com

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