You can use -oaxaca- in this case, but the standard errors will be
biased because the sample of females and males are not independent.
Use the bootstrap to compute the standard errors.
ben
On 6/28/07, [email protected] <[email protected]> wrote:
Thanks Ben, I don't know why? because I want calculate the
decoposition between husband and wife, so sure I have relation because
my dataset is:
wife husband wwage hwage
1 1 100 200
I do :
reg wwage xi
est stor w
reghwage xi
est sto h
oaxaca h w
Can I estimate with oaxaca this data set? is it right the procedure?
thanks a lot for your help.
Quoting Ben Jann <[email protected]>:
> It means that some of your females are in the male sample or vice
> versa. Check the -if- qualifiers of your regression commands.
> ben
>
> On 6/28/07, [email protected] <[email protected]> wrote:
>> Dear statalist, I'm doing a oaxaca decomposition and I have this
>> message before the estmation with oaxaca. What is it means?
>> thanks
>> warning: overlapping samples
>> (high estimates: female4; low estimates: male4)
>>
>> Mean prediction 1
>> = 2.095566
>> Mean prediction 2
>> = 1.939635
>> ------------------------------------------------------------------------------
>> | Coef. Std. Err. z P>|z| [95%
>> Conf. Interval]
>> -------------+----------------------------------------------------------------
>> difference | .155931 .0301257 5.18 0.000 .0968858
>> .2149762
>> ------------------------------------------------------------------------------
>>
>> Linear decomposition
>> ------------------------------------------------------------------------------
>> Total | Coef. Std. Err. z P>|z| [95%
>> Conf. Interval]
>> -------------+----------------------------------------------------------------
>> three-fold |
>> endowments | -.6220027 .2610409 -2.38 0.017 -1.133633
>> -.110372
>> coefficients | -.1470742 .0839665 -1.75 0.080 -.3116456
>> .0174971
>> interaction | .9250079 .2727451 3.39 0.001 .3904373
>> 1.459579
>> ------------------------------------------------------------------------------
>>
>>
>>
>> *
>> * For searches and help try:
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>> * http://www.stata.com/support/statalist/faq
>> * http://www.ats.ucla.edu/stat/stata/
>>
> *
> * For searches and help try:
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*
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*
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