In regression discontinuity design (RD), for a given bandwidth, researchers can estimate standard errors based on different variance formulas obtained under different asymptotic frameworks. In the traditional approach the bandwidth shrinks to zero as sample size increases; alternatively, the...

In regression discontinuity design (RD), for a given bandwidth, researchers can estimate standard errors based on different variance formulas obtained under different asymptotic frameworks. In the traditional approach the bandwidth shrinks to zero as sample size increases; alternatively, the...

 In regression discontinuity design (RD), researchers use bandwidths around the discontinuity. For agiven bandwidth, one can estimate asymptotic variance based on the assumption that the bandwidthshrinks to zero as sample size increases (the traditional approach) or, alternatively, that the...