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  • Kmatch

    Hi all,

    I am using kmatch at stata 16.0. The command "kmatch md publiccomp ta poso_015 (apopbtdas), nate att nn //
    lincom ATT-NATE" shows the output below:


    kmatch md publiccomp ta poso_015 (apopbtdas), nate att nn

    Multivariate-distance nearest-neighbor matching

    Number of obs = 707,170
    Neighbors: min = 1
    Treatment : publiccomp = 1 max = 50
    Metric : mahalanobis
    Covariates : ta poso_015

    Matching statistics
    ------------------------------------------------------------------------------
    | Matched | Controls
    | Yes No Total | Used Unused Total
    -----------+---------------------------------+--------------------------------
    Treated | 218644 0 218644 | 141726 346800 488526
    ------------------------------------------------------------------------------

    Treatment-effects estimation
    ------------------------------------------------------------------------------
    apopbtdas | Coef. Std. Err. t P>|t| [95% Conf. Interval]
    -------------+----------------------------------------------------------------
    ATT | .3042954 .2101507 1.45 0.148 -.1075931 .7161839
    NATE | .0177991 .2272304 0.08 0.938 -.4275651 .4631634
    ------------------------------------------------------------------------------


    ( 1) ATT - NATE = 0

    ------------------------------------------------------------------------------
    apopbtdas | Coef. Std. Err. t P>|t| [95% Conf. Interval]
    -------------+----------------------------------------------------------------
    (1) | .2864962 .0939816 3.05 0.002 .1022954 .4706971
    ------------------------------------------------------------------------------


    Therefore, can I conclude that the "effect" of the variable publiccomp on variable apopbtdas is statistically significant according to t-stat (3.05) ?

    Thanks,
    Angeliki
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