This paper extends Kiefer, Vogelsang, and Bunzel - (2000, Econometrica) and Kiefer and Vogelsang - (2002b, Econometric Theory) to propose a class of over-identifying restrictions (OIR) tests that are robust to heteroskedasticity and serial correlations of unknown form. These OIR tests do not...

We propose a new approach to constructing robust hypothesis tests based on general M-estimators with possibly non-differentiable estimating functions. The proposed test employs a random normalizing matrix computed using only recursive M-estimators to eliminate the nuisance parameters arising...