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  • Problem with interpretation of results given by reghdfe (binary dependent variable)

    Dear Forum users,

    I am estimating the investor's decision to invest in private equity funds (1 for yes, 0 for no). The reghdfe model includes more than one fixed effect (year, investor ID, manager ID) and double clustering of standard errors. My results look like this:
    y=-0.0015x...(other estmation results). How can I interpret the results of my main independent variable? Is it probability or just coefficient?

    Kind regards,
    Firangiz

  • #2
    Hi, if x is linear (not scaled) then the interpretation is that of a probability. The coefficient can be interpreted as the change in the probability of investing for a one-unit change in the independent variable.

    Comment


    • #3
      Hi, Luca! I see. What is it is scaled?

      Comment


      • #4
        Not something like log(x)

        Comment


        • #5
          Firangiz:
          it is not that easy to reply positively without reading what you typed and Stata gave you back (as per FAQ). Thanks.
          Kind regards,
          Carlo
          (StataNow 18.5)

          Comment


          • #6
            Dear Carlo,

            This is what I typed and what I got from STATA 17. Hope it helps to explain my issue. I have non-scaled and dummy independent variables. I am not quite sure how to interpret their coefficients.

            Code:
             reghdfe invest_dummy SixD_hofV_1 Prior_relationship_dummy LP_GDP_currentmnLN LP_EFInvestmentFreedomLN Fund_Size_USDLN Fund_seq_numLN LP_WGILN Manager_WGILN Legal_origin_bias Fund_coinvestment_dummy, absorb(Fund_Vintage Manager_ID) vce(cluster Fund_Vintage Manager_country) noconstant
            (MWFE estimator converged in 10 iterations)
            Warning: VCV matrix was non-positive semi-definite; adjustment from Cameron, Gelbach & Miller ap
            > plied.
            warning: missing F statistic; dropped variables due to collinearity or too few clusters
            
            HDFE Linear regression                            Number of obs   = 12,210,492
            Absorbing 2 HDFE groups                           F(  10,     22) =          .
            Statistics robust to heteroskedasticity           Prob > F        =          .
                                                              R-squared       =     0.0082
                                                              Adj R-squared   =     0.0079
            Number of clusters (Fund_Vintage) =         23    Within R-sq.    =     0.0045
            Number of clusters (Manager_country) =         67 Root MSE        =     0.0503
            
                                  (Std. err. adjusted for 23 clusters in Fund_Vintage Manager_country)
            ------------------------------------------------------------------------------------------
                                     |               Robust
                        invest_dummy | Coefficient  std. err.      t    P>|t|     [95% conf. interval]
            -------------------------+----------------------------------------------------------------
                         SixD_hofV_1 |  -.0020704   .0004806    -4.31   0.000    -.0030671   -.0010738
            Prior_relationship_dummy |    .003192   .0010566     3.02   0.006     .0010007    .0053832
                  LP_GDP_currentmnLN |  -.0004935   .0003121    -1.58   0.128    -.0011407    .0001537
            LP_EFInvestmentFreedomLN |   -.001253   .0008132    -1.54   0.138    -.0029395    .0004336
                     Fund_Size_USDLN |    .001084   .0003121     3.47   0.002     .0004367    .0017314
                      Fund_seq_numLN |   .0007423   .0002476     3.00   0.007     .0002287    .0012559
                            LP_WGILN |   .0001221   .0015866     0.08   0.939    -.0031683    .0034125
                       Manager_WGILN |  -.0023804   .0015964    -1.49   0.150    -.0056912    .0009303
                   Legal_origin_bias |  -.0008595   .0006005    -1.43   0.166    -.0021049     .000386
             Fund_coinvestment_dummy |   .9932533   .0007418  1338.91   0.000     .9917149    .9947918
            ------------------------------------------------------------------------------------------
            
            Absorbed degrees of freedom:
            ------------------------------------------------------+
              Absorbed FE | Categories  - Redundant  = Num. Coefs |
            --------------+---------------------------------------|
             Fund_Vintage |        23          23           0    *|
               Manager_ID |      3415        3415           0    *|
            ------------------------------------------------------+
            * = FE nested within cluster; treated as redundant for DoF computation
            
            .
            Last edited by Firangiz Aghayeva; 28 Dec 2023, 13:00.

            Comment


            • #7
              Firangiz:
              see Interpretation of coefficients in LPM - Statalist
              Kind regards,
              Carlo
              (StataNow 18.5)

              Comment


              • #8
                Thank you very much for your reply!

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