 The identification result shows that, under a very strong assumption of equality of treatment probability changes at the cutoff point, a difference in fuzzy discontinuity identify a treatment effect of interest.
<fluency>  The identification result shows that, under a very strong assumption of equality of treatment probability changes at the cutoff point, a difference in fuzzy discontinuity identify a treatment effect of interest.
 The identification results show that, under a very strong assumption of equality of treatment probability changes at the cutoff point, a difference in fuzzy discontinuity identify a treatment effect of interest.