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  • IV gives insignificant result and weak instrument

    Hello, I estimated a regression by ols and 2sls both. In ols the main independent variable of interest x, turns out to be significant. In IV it isn't significant. I checked for weak iv using weakivtest the effective F stat is 7.495<10. I also used estat endogenous, p value is high, can't reject the null of exogeneity, other stats of instrument strength are also below 10. Now, I think ols is the right model for me. But I want to compare the ols and iv estimates. Is there any way to do that. Please respond.
    Last edited by Serena Smith; 29 Mar 2024, 14:54.
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