Hello all.
I'm trying to regress the housing value at parcel level i on some average housing and socioeconomic characteristics at the county level j that the house i is located in.Because the property value of house i is not observed every year so I have a non-panel data. Now when I add some county fixed effects to the original OLS regression, the coefficients for those housing and socioeconomic variables at the county level become 100 times larger in magnitude and also become insignificant. Is this normal and how do I interpret this results.
Thanks all.
Alex
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