We estimated a multivariate regression specification of the difference-in-difference model in which an individual's outcome is regressed against a dummy variable, indicating whether the facility received P4P that year, a facility-fixed effect, a year indicator, and a series of individual and household characteristics.
Specification of different programs and interventions based on these differences is important.
This requires the prior specification of a difference large enough to clinically favour the standard intervention over the study intervention.
Finally, while controlling for the impact of hospital organizational and environmental characteristics, we applied a difference-in-difference specification of the regression model to examine whether privatization improved hospital efficiency.
A difference-in-difference specification of the regression model was used to assess whether privatization led to improvements in efficiency while controlling for patient heterogeneity and the impact of hospital organizational and environmental characteristics.
There is no rigorous specification of what magnitude of difference in DIC scores indicates a strong preference in favour of a model with the lower score, but some authors recommend using a difference of 10, as a rule of thumb [ 44].
The first specification includes differences of the non-fixed basic controls seen previously (with the exception of hours worked on the primary job), plus the unemployment rate in changes and level.
In this way, characterizing this or that view as committed to haecceitism simpliciter can prove unhelpful without a specification of the precise haecceitistic differences admitted.
However, to date it has not been shown whether and to what extent cell specification of ePG contributes to functional differences and hence to the generation of these glial layers.
Four years into the project, the first few airframes had effectively become prototypes in all but name, exhibiting a succession of omissions from the specification and differences from the intended pre-production and production batches.
