Some Finite-Sample Results on the Hausman Test

16 Dec 2023  ·  Jinyong Hahn, Zhipeng Liao, Nan Liu, Shuyang Sheng ·

This paper shows that the endogeneity test using the control function approach in linear instrumental variable models is a variant of the Hausman test. Moreover, we find that the test statistics used in these tests can be numerically ordered, indicating their relative power properties in finite samples.

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