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       log:  /afs/uncg.edu/html/bae/people/rosenbaum/643/m2.log
  log type:  text
 opened on:  26 Sep 2006, 13:34:16

. 
. /***********************************************************
> M2.DO is a STATA do-file used for the take home exam.
> 
> Located at my course web-site (http://www.uncg.edu/bae/people/rosenbaum/Eco64
> 3/main.html) 
> is a space-delimited file (card.raw) containing individual-level data 
> of males aged 24-34 from the U.S. in 1976 with an hourly wage of $1 
> per hour or greater.  The variables are as follows.  Note that I 
> have included a stata do file (m2.do) to help you read in this data.
> 
>   1. id                       person identifier
>   2. nearc2                   =1 if near 2 yr college, 1966
>   3. nearc4                   =1 if near 4 yr college, 1966
>   4. educ                     years of schooling, 1976
>   5. age                      in years
>   6. fatheduc                 father's schooling
>   7. motheduc                 mother's schooling
>   8. weight                   NLS sampling weight, 1976
>   9. momdad14                 =1 if live with mom, dad at age 14
>  10. sinmom14                 =1 if with single mom at age 14
>  11. step14                   =1 if with step parent at age 14
>  12. reg661                   =1 for region 1, 1966
>  13. reg662                   =1 for region 2, 1966
>  14. reg663                   =1 for region 3, 1966
>  15. reg664                   =1 for region 4, 1966
>  16. reg665                   =1 for region 5, 1966
>  17. reg666                   =1 for region 6, 1966
>  18. reg667                   =1 for region 7, 1966
>  19. reg668                   =1 for region 8, 1966
>  20. reg669                   =1 for region 9, 1966
>  21. south66                  =1 if in south in 1966
>  22. black                    =1 if black
>  23. smsa                     =1 in in SMSA, 1976
>  24. south                    =1 if in south, 1976
>  25. smsa66                   =1 if in SMSA, 1966
>  26. wage                     hourly wage in cents, 1976
>  27. enroll                   =1 if enrolled in school, 1976
>  28. KWW                      knowledge world of work score
>  29. IQ                       IQ score
>  30. married                  =1 if married, 1976
>  31. libcrd14                 =1 if lib. card in home at age 14
>  32. exper                    age - educ - 6
>  33. lwage                    log(wage)
>  34. expersq                  exper^2
> 
> - written by Dan Rosenbaum, 2006
> ***********************************************************/
. 
. /***********************************************************
> I start by inputting the data using an INFILE statement,
> since the data is space-delimited rather than tab-delimited.
> I also calculate summary statistics for the sample.
> ***********************************************************/
. 
. infile id nearc2 nearc4 educ age fatheduc motheduc weight momdad14 sinmom14 s
> tep14 ///
>         reg661 reg662 reg663 reg664 reg665 reg666 reg667 reg668 reg669 south6
> 6 black ///
>         smsa south smsa66 wage enroll kww iq married libcrd14 exper lwage exp
> ersq ///
>         using card
(3010 observations read)

. 
. sum

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
          id |      3010    2581.749    1500.539          2       5225
      nearc2 |      3010    .4408638    .4965731          0          1
      nearc4 |      3010    .6820598    .4657535          0          1
        educ |      3010    13.26346    2.676913          1         18
         age |      3010     28.1196    3.137004         24         34
-------------+--------------------------------------------------------
    fatheduc |      2320    10.00345    3.720737          0         18
    motheduc |      2657    10.34814    3.179671          0         18
      weight |      3010    321185.3    170645.8      75607    1752340
    momdad14 |      3010    .7893688    .4078247          0          1
    sinmom14 |      3010    .1006645    .3009339          0          1
-------------+--------------------------------------------------------
      step14 |      3010    .0388704    .1933182          0          1
      reg661 |      3010    .0465116    .2106253          0          1
      reg662 |      3010    .1607973     .367405          0          1
      reg663 |      3010    .1956811      .39679          0          1
      reg664 |      3010    .0641196    .2450066          0          1
-------------+--------------------------------------------------------
      reg665 |      3010    .2083056     .406164          0          1
      reg666 |      3010    .0960133    .2946584          0          1
      reg667 |      3010    .1099668    .3129003          0          1
      reg668 |      3010    .0282392     .165683          0          1
      reg669 |      3010    .0903654    .2867522          0          1
-------------+--------------------------------------------------------
     south66 |      3010    .4142857    .4926801          0          1
       black |      3010    .2335548    .4231624          0          1
        smsa |      3010    .7129568    .4524571          0          1
       south |      3010    .4036545    .4907113          0          1
      smsa66 |      3010    .6495017    .4772053          0          1
-------------+--------------------------------------------------------
        wage |      3010    577.2824    262.9583        100       2404
      enroll |      3010    .0923588    .2895799          0          1
         kww |      2963    33.54067    8.611619          4         56
          iq |      2061    102.4498    15.42376         50        149
     married |      3003    2.271395    2.066823          1          6
-------------+--------------------------------------------------------
    libcrd14 |      2997     .674341    .4686987          0          1
       exper |      3010    8.856146    4.141672          0         23
       lwage |      3010    6.261832    .4437976    4.60517   7.784889
     expersq |      3010    95.57907    84.61831          0        529

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end of do-file