Hi,
I performed a Hausman Test to check whether I should use a random effects or fixed effects model. The p-value is significant at the 5%-level (p=0.0044) but I get the notion: "V_b-V_B is not positive definite" (find screenshot attached). What does this mean for my choice between fixed or random effects model?
I performed a Hausman Test to check whether I should use a random effects or fixed effects model. The p-value is significant at the 5%-level (p=0.0044) but I get the notion: "V_b-V_B is not positive definite" (find screenshot attached). What does this mean for my choice between fixed or random effects model?
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