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  • Practice Testing


    Fixed-effects (within) regression Number of obs = 611
    Group variable: id Number of groups = 41

    R-sq: Obs per group:
    within = 0.7152 min = 8
    between = 0.1082 avg = 14.9
    overall = 0.0022 max = 16

    F(25,40) = 25.70
    corr(u_i, Xb) = -0.2688 Prob > F = 0.0000

    (Std. Err. adjusted for 41 clusters in id)
    -----------------------------------------------------------------------------------------
    | Robust
    log_a_MO_Rev | Coef. Std. Err. t P>|t| [95% Conf. Interval]
    ------------------------+----------------------------------------------------------------
    a_EX_ratio | -.0009671 .0020312 -0.48 0.637 -.0050723 .0031382
    a_taxincentive_ratio | -.023357 .0074548 -3.13 0.003 -.0384238 -.0082903
    a_OV65_ratio | -.0235831 .0298115 -0.79 0.434 -.0838343 .0366682
    a_otherrelief_ratio | -.0064862 .0061849 -1.05 0.301 -.0189864 .0060139
    a_Sales_mil | -.0001181 .0012523 -0.09 0.925 -.0026492 .0024129
    a_IGR_mil | .0002583 .0006655 0.39 0.700 -.0010868 .0016034
    a_AOR_mil | -.0000923 .0000201 -4.60 0.000 -.0001329 -.0000517
    UnemploymentRate | -.0045942 .0021794 -2.11 0.041 -.0089989 -.0001894
    PersonalIncomepercapita | .0000147 6.57e-06 2.24 0.031 1.44e-06 .000028
    populationgrowth | .009587 .0116564 0.82 0.416 -.0139713 .0331454
    |
    Year |
    2001 | .0861825 .0391527 2.20 0.034 .007052 .165313
    2002 | .1629022 .0510793 3.19 0.003 .0596672 .2661373
    2003 | .2171911 .052116 4.17 0.000 .1118608 .3225213
    2004 | .2542968 .058912 4.32 0.000 .1352311 .3733624
    2005 | .2924637 .0639644 4.57 0.000 .1631868 .4217407
    2006 | .3118878 .0655901 4.76 0.000 .1793253 .4444503
    2007 | .3509507 .0747855 4.69 0.000 .1998034 .5020979
    2008 | .4072857 .0757548 5.38 0.000 .2541795 .5603918
    2009 | .5096665 .0772804 6.60 0.000 .3534769 .6658561
    2010 | .529054 .0775981 6.82 0.000 .3722223 .6858856
    2011 | .503395 .0797065 6.32 0.000 .342302 .6644879
    2012 | .4934055 .0797403 6.19 0.000 .3322443 .6545667
    2013 | .4990504 .0820101 6.09 0.000 .3333017 .6647991
    2014 | .5003613 .0832955 6.01 0.000 .3320148 .6687079
    2015 | .5456539 .0859623 6.35 0.000 .3719177 .7193901
    |
    _cons | 16.56782 .1781251 93.01 0.000 16.20782 16.92783
    ------------------------+----------------------------------------------------------------
    sigma_u | 1.069802
    sigma_e | .12689401
    rho | .98612581 (fraction of variance due to u_i)
    -----------------------------------------------------------------------------------------


  • #2
    PHP Code:
    xtreg log_a_PTR a_EX_ratio a_taxincentive_ratio a_OV65_ratio a_otherrelief_ratio a_Sales_mil a_IGR_mil a_AOR_mil UnemploymentRate PersonalIncomepercapita populationgrowth i.Yearfe cluster (idrobust
    outreg2 using myreg
    .docstat(coefreplace ctitle(PTR)
    xtreg log_a_PTR_pc a_EX_ratio a_taxincentive_ratio a_OV65_ratio a_otherrelief_ratio a_Sales_pc a_IGR_pc a_AOR_pc UnemploymentRate PersonalIncomepercapita populationgrowth i.Yearfe robust
    outreg2 using myreg
    .docstat(coefappend ctitle(PTR_pc)

    *
    M&O with taxincentive2*
    xtreg log_a_MO_Rev a_EX_ratio a_taxincentive_ratio a_OV65_ratio a_otherrelief_ratio a_Sales_mil a_IGR_mil a_AOR_mil UnemploymentRate PersonalIncomepercapita populationgrowth i.Yearfe robust
    outreg2 using myreg
    .docstat(coefappend ctitle(M&O)
    xtreg log_a_MO_Rev_pc a_EX_ratio a_taxincentive_ratio a_OV65_ratio a_otherrelief_ratio  a_Sales_pc a_IGR_pc a_AOR_pc UnemploymentRate PersonalIncomepercapita populationgrowth i.Yearfe robust
    outreg2 using myreg
    .docstat(coefappend ctitle(M&O_pc)

    *
    IS with taxincentive*
    xtreg log_a_IS_Rev a_EX_ratio a_taxincentive_ratio a_OV65_ratio a_otherrelief_ratio a_Sales_mil a_IGR_mil a_AOR_mil UnemploymentRate PersonalIncomepercapita populationgrowth i.Yearfe robust
    outreg2 using myreg
    .docstat(coefappend ctitle(I&S)
    xtreg log_a_IS_Rev_pc a_EX_ratio a_taxincentive_ratio a_OV65_ratio a_otherrelief_ratio a_Sales_pc a_IGR_pc a_AOR_pc UnemploymentRate PersonalIncomepercapita populationgrowth i.Yearfe robust
    outreg2 using myreg
    .docstat(coefappend ctitle(I&S_pc

    Comment


    • #3
      Code:
      xtreg log_a_PTR a_EX_ratio a_taxincentive_ratio a_OV65_ratio a_otherrelief_ratio a_Sales_mil a_IGR_mil a_AOR_mil UnemploymentRate PersonalIncomepercapita populationgrowth i.Year, fe cluster (id) robust
      outreg2 using myreg.doc, stat(coef) replace ctitle(PTR)
      xtreg log_a_PTR_pc a_EX_ratio a_taxincentive_ratio a_OV65_ratio a_otherrelief_ratio a_Sales_pc a_IGR_pc a_AOR_pc UnemploymentRate PersonalIncomepercapita populationgrowth i.Year, fe robust
      outreg2 using myreg.doc, stat(coef) append ctitle(PTR_pc)
      
      *M&O with taxincentive2*
      xtreg log_a_MO_Rev a_EX_ratio a_taxincentive_ratio a_OV65_ratio a_otherrelief_ratio a_Sales_mil a_IGR_mil a_AOR_mil UnemploymentRate PersonalIncomepercapita populationgrowth i.Year, fe robust
      outreg2 using myreg.doc, stat(coef) append ctitle(M&O)
      xtreg log_a_MO_Rev_pc a_EX_ratio a_taxincentive_ratio a_OV65_ratio a_otherrelief_ratio  a_Sales_pc a_IGR_pc a_AOR_pc UnemploymentRate PersonalIncomepercapita populationgrowth i.Year, fe robust
      outreg2 using myreg.doc, stat(coef) append ctitle(M&O_pc)
      
      *IS with taxincentive*
      xtreg log_a_IS_Rev a_EX_ratio a_taxincentive_ratio a_OV65_ratio a_otherrelief_ratio a_Sales_mil a_IGR_mil a_AOR_mil UnemploymentRate PersonalIncomepercapita populationgrowth i.Year, fe robust
      outreg2 using myreg.doc, stat(coef) append ctitle(I&S)
      xtreg log_a_IS_Rev_pc a_EX_ratio a_taxincentive_ratio a_OV65_ratio a_otherrelief_ratio a_Sales_pc a_IGR_pc a_AOR_pc UnemploymentRate PersonalIncomepercapita populationgrowth i.Year, fe robust
      outreg2 using myreg.doc, stat(coef) append ctitle(I&S_pc)

      Comment


      • #4
        Code:
        xtreg log_a_PTR a_EX_ratio a_taxincentive_ratio a_OV65_ratio a_otherrelief_ratio a_Sales_mil a_IGR_mil a_AOR_mil UnemploymentRate PersonalIncomepercapita populationgrowth i.Year, fe
        testparm i. Year

        Comment


        • #5
          PHP Code:
          ixed-effects (withinregression               Number of obs     =        611
          Group variable
          id                              Number of groups  =         41

          R
          -sq:                                           Obs per group:
               
          within  0.7152                                         min =          8
               between 
          0.1082                                         avg =       14.9
               overall 
          0.0022                                         max =         16

                                                          F
          (25,40)          =      25.70
          corr
          (u_iXb)  = -0.2688                        Prob F          =     0.0000

                                                         
          (StdErradjusted for 41 clusters in id)
          -----------------------------------------------------------------------------------------
                                  |               
          Robust
                     log_a_MO_Rev 
          |      Coef.   StdErr.      t    P>|t|     [95ConfInterval]
          ------------------------+----------------------------------------------------------------
                       
          a_EX_ratio |  -.0009671   .0020312    -0.48   0.637    -.0050723    .0031382
             a_taxincentive_ratio 
          |   -.023357   .0074548    -3.13   0.003    -.0384238   -.0082903
                     a_OV65_ratio 
          |  -.0235831   .0298115    -0.79   0.434    -.0838343    .0366682
              a_otherrelief_ratio 
          |  -.0064862   .0061849    -1.05   0.301    -.0189864    .0060139
                      a_Sales_mil 
          |  -.0001181   .0012523    -0.09   0.925    -.0026492    .0024129
                        a_IGR_mil 
          |   .0002583   .0006655     0.39   0.700    -.0010868    .0016034
                        a_AOR_mil 
          |  -.0000923   .0000201    -4.60   0.000    -.0001329   -.0000517
                 UnemploymentRate 
          |  -.0045942   .0021794    -2.11   0.041    -.0089989   -.0001894
          PersonalIncomepercapita 
          |   .0000147   6.57e-06     2.24   0.031     1.44e-06     .000028
                 populationgrowth 
          |    .009587   .0116564     0.82   0.416    -.0139713    .0331454
                                  
          |
                             
          Year |
                            
          2001  |   .0861825   .0391527     2.20   0.034      .007052     .165313
                            2002  
          |   .1629022   .0510793     3.19   0.003     .0596672    .2661373
                            2003  
          |   .2171911    .052116     4.17   0.000     .1118608    .3225213
                            2004  
          |   .2542968    .058912     4.32   0.000     .1352311    .3733624
                            2005  
          |   .2924637   .0639644     4.57   0.000     .1631868    .4217407
                            2006  
          |   .3118878   .0655901     4.76   0.000     .1793253    .4444503
                            2007  
          |   .3509507   .0747855     4.69   0.000     .1998034    .5020979
                            2008  
          |   .4072857   .0757548     5.38   0.000     .2541795    .5603918
                            2009  
          |   .5096665   .0772804     6.60   0.000     .3534769    .6658561
                            2010  
          |    .529054   .0775981     6.82   0.000     .3722223    .6858856
                            2011  
          |    .503395   .0797065     6.32   0.000      .342302    .6644879
                            2012  
          |   .4934055   .0797403     6.19   0.000     .3322443    .6545667
                            2013  
          |   .4990504   .0820101     6.09   0.000     .3333017    .6647991
                            2014  
          |   .5003613   .0832955     6.01   0.000     .3320148    .6687079
                            2015  
          |   .5456539   .0859623     6.35   0.000     .3719177    .7193901
                                  
          |
                            
          _cons |   16.56782   .1781251    93.01   0.000     16.20782    16.92783
          ------------------------+----------------------------------------------------------------
                          
          sigma_u |   1.069802
                          sigma_e 
          |  .12689401
                              rho 
          |  .98612581   (fraction of variance due to u_i)
          ----------------------------------------------------------------------------------------- 

          Comment


          • #6
            PHP Code:
            xtreg PTR_burden EX_pc OV65_p65 otherrelief_pc taxincentive_pc Sales_pc AOR_pc IGR_pc change_taxable UnemploymentRate PersonalIncomepercapita populationgrowth Pop_65 i.Yearfe robust 

            Comment


            • #7
              code#xtreg PTR_burden EX_pc OV65_p65 otherrelief_pc taxincentive_pc Sales_pc AOR_pc IGR_pc change_taxable UnemploymentRate PersonalIncomepercapita populationgrowth Pop_65 i.Year, fe robust #

              Comment


              • #8
                [Code]xtreg PTR_burden EX_pc OV65_p65 otherrelief_pc taxincentive_pc Sales_pc AOR_pc IGR_pc change_taxable UnemploymentRate PersonalIncomepercapita populationgrowth Pop_65 i.Year, fe robust[/PHP]

                Comment


                • #9
                  Code:
                  xtreg PTR_burden EX_pc OV65_p65 otherrelief_pc taxincentive_pc Sales_pc AOR_pc IGR_pc change_taxable UnemploymentRate PersonalIncomepercapita populationgrowth Pop_65 i.Year, fe robust

                  Comment


                  • #10
                    PHP Code:
                    Fixed-effects (withinregression               Number of obs     =        456
                    Group variable
                    id                              Number of groups  =         41

                    R
                    -sq:                                           Obs per group:
                         
                    within  0.5481                                         min =          5
                         between 
                    0.3028                                         avg =       11.1
                         overall 
                    0.3610                                         max =         15

                                                                    F
                    (27,40)          =     396.71
                    corr
                    (u_iXb)  = -0.2691                        Prob F          =     0.0000

                                                                   
                    (StdErradjusted for 41 clusters in id)
                    -----------------------------------------------------------------------------------------
                                            |               
                    Robust
                                 PTR_burden 
                    |      Coef.   StdErr.      t    P>|t|     [95ConfInterval]
                    ------------------------+----------------------------------------------------------------
                                      
                    EX_pc |   .0089404   .0024012     3.72   0.001     .0040874    .0137934
                                   OV65_p65 
                    |   .0058065   .0019817     2.93   0.006     .0018014    .0098116
                             otherrelief_pc 
                    |   .0018501   .0092742     0.20   0.843    -.0168937    .0205939
                            taxincentive_pc 
                    |  -.0129286   .0103994    -1.24   0.221    -.0339465    .0080893
                                   Sales_pc 
                    |   .1784833   .1571568     1.14   0.263    -.1391425    .4961091
                                     AOR_pc 
                    |   .2060522   .1215545     1.70   0.098    -.0396187    .4517231
                                     IGR_pc 
                    |   .1506364   .0386097     3.90   0.000     .0726034    .2286695
                             change_taxable 
                    |   .0045305   .0085143     0.53   0.598    -.0126776    .0217385
                           UnemploymentRate 
                    |   -.007465   .0058312    -1.28   0.208    -.0192504    .0043204
                    PersonalIncomepercapita 
                    |  -.0000254   3.64e-06    -6.96   0.000    -.0000327    -.000018
                           populationgrowth 
                    |  -.0384458   .0104806    -3.67   0.001    -.0596278   -.0172638
                                     Pop_65 
                    |   .0064509   .0102069     0.63   0.531     -.014178    .0270799
                                            
                    |
                                       
                    Year |
                                      
                    2001  |  -.0929023   .1159678    -0.80   0.428     -.327282    .1414774
                                      2002  
                    |  -.0406047   .1150099    -0.35   0.726    -.2730484    .1918389
                                      2003  
                    |   .0112386   .1192445     0.09   0.925    -.2297636    .2522408
                                      2004  
                    |   .0434688   .1160392     0.37   0.710    -.1910552    .2779927
                                      2005  
                    |   .0493493    .119486     0.41   0.682    -.1921408    .2908395
                                      2006  
                    |   .0715271    .114923     0.62   0.537     -.160741    .3037951
                                      2007  
                    |   .1384106    .113426     1.22   0.230     -.090832    .3676531
                                      2008  
                    |   .1954989   .1155904     1.69   0.099    -.0381181    .4291158
                                      2009  
                    |   .2670636   .1118202     2.39   0.022     .0410666    .4930606
                                      2010  
                    |   .3003148   .1081753     2.78   0.008     .0816843    .5189452
                                      2011  
                    |   .2952955   .1090162     2.71   0.010     .0749656    .5156254
                                      2012  
                    |   .2804199   .1066474     2.63   0.012     .0648774    .4959624
                                      2013  
                    |   .2583136   .1107642     2.33   0.025     .0344509    .4821764
                                      2014  
                    |   .2796089   .1103763     2.53   0.015       .05653    .5026878
                                      2015  
                    |   .2612536     .10994     2.38   0.022     .0390565    .4834506
                                            
                    |
                                      
                    _cons |  -4.209118   .2627181   -16.02   0.000    -4.740091   -3.678144
                    ------------------------+----------------------------------------------------------------
                                    
                    sigma_u |  .21618301
                                    sigma_e 
                    |  .10333628
                                        rho 
                    |  .81400908   (fraction of variance due to u_i)
                    ----------------------------------------------------------------------------------------- 

                    Comment

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