| http://www.w3.org/ns/prov#value | - By including household fixed effects in our estimating equation (that is, a separate dummy variable for each household), we can largely eliminate the effects of ???time-invariant household and area-specific heterogeneity??? (that is, the special or unique features of households, many of which are unobservable, such as whether the head is an alcoholic, or sick, or entrepreneurially inclined).
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