heteroskedasticity-robust standard errors. This paper develops the "fixed-bandwidth" alternative asymptotic theory for RD designs, which … improvements in test coverage that fixed-bandwidth approximations achieve relative to traditional approximations, especially when … there is local heteroskedasticity. Feasible estimators of fixed-bandwidth standard errors are easy to implement and are akin …

heteroskedasticity-robust standard errors. This paper develops the "fixed-bandwidth" alternative asymptotic theory for RD designs, which … improvements in test coverage that fixed-bandwidth approximations achieve relative to traditional approximations, especially when … there is local heteroskedasticity. Feasible estimators of fixed-bandwidth standard errors are easy to implement and are akin …

former, while most applications in the literature treat the estimates as parametric. This paper develops the "fixed-bandwidth … light on implicit assumptions on both approaches. The fixed-bandwidth approach provides alternative formulas, i ….e. alternative approximations, for the bias and variance of RD estimators. Simulations indicate that fixed-bandwidth approximations …