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Re: st: RE: -mfx compute, force- not reporting se in -estout-


From   "Nirina F" <[email protected]>
To   [email protected]
Subject   Re: st: RE: -mfx compute, force- not reporting se in -estout-
Date   Thu, 18 Oct 2007 06:56:44 -0400

Ok Nick, this is a bit of details.
I am mainly looking at the impact of binge drinking on violence
related outcomes.
I run probit but then biprobit. And I have controls such as  age, sex, race,
ethnicity, religious affiliation, year in school, parents education,
parents drinking patterns, living arrangements,type of college,
region, and year.
So as I said below, I have to force -mfx- to give me s.e but then
these s.e would not even be reported in estout.  And what are the
costs of this -force-?

(Results copied from Stata Results window0
. mfx compute;

warning: predict() expression  unsuitable for standard-error calculation;
option nose imposed


Marginal effects after biprobit
      y  = Pr(Bdrinking=1,Damage=1) (predict)
         =  .06381258
-------------------------------------------------------------------------------
                        variable |          dy/dx                 X
---------------------------------+---------------------------------------------
                           age |       -.0104554            39.3722
                          age2 |        .0001959            1675.15
                             x1 *|        .0438169            .567348
                              x2*|        -.030192            .945393
                              x3 |        .0451067            1.10193
                        race1*|         .038111            .469056
                        race2*|       -.0596293            .202464
                           jewi*|         .020694            .201064
                     noreligion*|         .011279            .627275
                       catholic*|        .1514319             .16718
                    Bdrinking*|        .0064071            .288435
-------------------------------------------------------------------------------
(*) dy/dx is for discrete change of dummy variable from 0 to 1

.
end of do-file

 mfx compute, force

Marginal effects after biprobit
      y  =  (predict)
         =  .06381258
------------------------------------------------------------------------------
variable |      dy/dx    Std. Err.     z    P>|z|  [    95% C.I.   ]      X
---------+--------------------------------------------------------------------
   age |  -.0104554      .00174   -6.00   0.000  -.013868 -.007043   39.3722
  age2 |   .0001959      .00002    9.30   0.000   .000155  .000237   1675.15
     x1*|   .0438169      .00569    7.70   0.000   .032663  .054971   .567348
      x2*|   -.030192      .01535   -1.97   0.049  -.060277 -.000107   .945393
       x3 |   .0451067      .00877    5.15   0.000   .027924   .06229   1.10193
race1*|    .038111      .00625    6.10   0.000    .02586  .050362   .469056
race2*|  -.0596293      .00519  -11.50   0.000  -.069795 -.049464   .202464
    jewi*|    .020694       .0478    0.43   0.665  -.072991  .114379   .201064
inorel~n*|    .011279      .04088    0.28   0.783   -.06884  .091398   .627275
icatho~c*|   .1514319       .0804    1.88   0.060  -.006142  .309006    .16718
Bdrinking*|   .0064071      .00484    1.32   0.186  -.003085  .015899   .288435
------------------------------------------------------------------------------
(*) dy/dx is for discrete change of dummy variable from 0 to 1




On 10/17/07, Nick Cox <[email protected]> wrote:
> The econometric costs of force would seem to depend on y, x1, x2
> and x3. Otherwise put: is this an answerable question?
>
> Nick
> [email protected]
>
> Nirina F
>
> > I would appreciate your help on this:
> > I run
> > probit y x1 x2 x3
> > mfx, force
> > estimates store mfx
> > estout mfx using feuille1, margin cells (b(fmt(%9.4f)) se(par
> > fmt(%9.2f)))
> >
> > where  I have to use the option force as mfx alone wouldn't
> > report the s.e.
> > In the stata window, I can see results of se after I use force but
> > then in estout the se 's are not reported.
> > Also,  what are the cost of using force in my econometric results?
>
> *
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