请问BW est.(h)和BW bias的区别.

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rdbwselect里面输出的结果有两个  一个是BW est.(h)  一个是BW bias.里面的e(h_mserd) 被解释为MSE-optimal bandwidth selector for the RD treatment effect estimator.
e(b_mserd)被解释为 MSE-optimal bandwidth selector for the bias of the RD treatment effect estimator.
请问两者的区别是什么？我会翻译但不懂其经济学含义。
最优带宽选择的时候选择前者还是后者呢？


e(h_mserd)           MSE-optimal bandwidth selector for the RD treatment effect estimator.
      e(h_msetwo_l)        MSE-optimal bandwidth selectors below the cutoff for the RD treatment effect estimator.
      e(h_msetwo_r)        MSE-optimal bandwidth selectors above the cutoff for the RD treatment effect estimator.
      e(h_msesum)          MSE-optimal bandwidth selector for the sum of regression estimates.
      e(h_msecomb1)        for min(mserd,msesum).
      e(h_msecomb2_l)      for median(msetwo,mserd,msesum), below the cutoff.
      e(h_msecomb2_r)      for median(msetwo,mserd,msesum), above the cutoff.


      e(h_cerrd)           CER-optimal bandwidth selector for the RD treatment effect estimator.
      e(h_certwo_l)        CER-optimal bandwidth selectors below the cutoff for the RD treatment effect estimator.
      e(h_certwo_r)        CER-optimal bandwidth selectors above the cutoff for the RD treatment effect estimator.
      e(h_cersum)          CER-optimal bandwidth selector for the sum of regression estimates.
      e(h_cercomb1)        for min(cerrd,cersum).
      e(h_cercomb2_l)      for median(certwo_l,cerrd,cersum), below the cutoff.
      e(h_cercomb2_r)      for median(certwo_r,cerrd,cersum), above the cutoff.


      e(b_mserd)           MSE-optimal bandwidth selector for the bias of the RD treatment effect estimator.
      e(b_msetwo_l)        MSE-optimal bandwidth selectors below the cutoff for the bias of the RD treatment effect estimator.
      e(b_msetwo_r)        MSE-optimal bandwidth selectors above the cutoff for the bias of the RD treatment effect estimator.
      e(b_msesum)          MSE-optimal bandwidth selector for the sum of regression estimates for the bias of the RD treatment effect estimator.
      e(b_msecomb1)        for min(mserd,msesum).
      e(b_msecomb2_l)      for median(msetwo,mserd,msesum), below the cutoff.
      e(b_msecomb2_r)      for median(msetwo,mserd,msesum), above the cutoff.


      e(b_cerrd)           CER-optimal bandwidth selector for the bias of the RD treatment effect estimator.
      e(b_certwo_l)        CER-optimal bandwidth selectors below the cutoff for the bias of the RD treatment effect estimator.
      e(b_certwo_r)        CER-optimal bandwidth selectors above the cutoff for the bias of the RD treatment effect estimator.
      e(b_cersum)          CER-optimal bandwidth selector for the sum of regression estimates for the bias of the RD treatment effect estimator.
      e(b_cercomb1)        for min(cerrd,cersum).
      e(b_cercomb2_l)      for median(certwo_l,cerrd,cersum), below the cutoff.
      e(b_cercomb2_r)      for median(certwo_r,cerrd,cersum), above the cutoff.

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关键词：Est IAS regression bandwidth estimator

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