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math.ST2018
Cross-Fitting and Fast Remainder Rates for Semiparametric Estimation
Whitney K. Newey, James R. Robins
There are many interesting and widely used estimators of a functional with finite semiparametric variance bound that depend on nonparametric estimators of nuisance functions. We us…
math.ST2017
Instrumental variables as bias amplifiers with general outcome and confounding
Peng Ding, Tyler VanderWeele, James Robins
Drawing causal inference with observational studies is the central pillar of many disciplines. One sufficient condition for identifying the causal effect is that the treatment-outc…