Mathematics, 27.07.2020 01:01 lily24113

If some of the omitted variables, which you hope to capture in the changes analysis, in fact change over time within entity, then the FE estimator a. will be unbiased only when allowing for heteroskedastic-robust standard errors. b. may still be biased. c. will only be unbiased in large samples. d. will always be unbiased.

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If some of the omitted variables, which you hope to capture in the changes analysis, in fact change...