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Re: st: Interpretation of regression outputs when variables are log transformed
From
Marco Buur <[email protected]>
To
[email protected]
Subject
Re: st: Interpretation of regression outputs when variables are log transformed
Date
Thu, 3 Mar 2011 09:14:48 +0100
Dear Junlin,
I refer to Stata instructions related to this issue. Please see
explanations below:
http://www.ats.ucla.edu/stat/mult_pkg/faq/general/log_transformed_regression.htm
Cheers Marco
On Wed, Mar 2, 2011 at 9:40 PM, Junlin Liao <[email protected]> wrote:
> Shouldn't they be log(1.1)*0.223 and log(1.1)*1.05 respectively for a
> 10% increase in independents? The numbers you choose make no
> difference. But for 100% increase, the corresponding increase in X
> will differ a lot.
>
> On Wed, Mar 2, 2011 at 12:01 PM, Marco Buur <[email protected]> wrote:
>> Dear Stata members,
>>
>> Me and my colleague are not sure that our interpretations of the
>> results are correct. Please confirm!
>>
>> 10% increase in Y will increase X for 1.1^0.223=1.021481649 which is
>> 2.1% and 10 % increase in Z will increase X for 1.1^1.05=1.10525457
>> which is 10.5%.
>>
>> Is this correct?
>>
>> -----------------------------------------------------------
>> | Robust
>> Log(X) | Coef. Std. Err. z P>|z|
>> -------------+----------------------------------------------
>> Log(Y) | .223 .033 3.57 0.000
>> Log(Z) | 1.05 .1045 11.14 0.000
>>
>> Thanks
>> Marco
>> *
>> * For searches and help try:
>> * http://www.stata.com/help.cgi?search
>> * http://www.stata.com/support/statalist/faq
>> * http://www.ats.ucla.edu/stat/stata/
>>
>
>
>
> --
> Junlin
>
> *
> * For searches and help try:
> * http://www.stata.com/help.cgi?search
> * http://www.stata.com/support/statalist/faq
> * http://www.ats.ucla.edu/stat/stata/
>
*
* For searches and help try:
* http://www.stata.com/help.cgi?search
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/