Using a flexible functional form specification, they obtain elasticities that vary according to the size and specific characteristics of the farm, and thus the quantitative effect of various factors on revenue can be analysed according to farm size.
This difference between the two decompositions could not necessarily be due to the fact that the Blinder-Oaxaca decomposition ignores the common support assumption; it could well be that by assuming linearity we are committing a functional form specification error.
To check for robustness against functional form specification, we also analyze mortality using fixed effects linear probability models.
The reduced form specification also allows us to look at the effect of father's education independently of the sorting and selection into marriage.
The dataset contains all individual delivery information including product name, purchase date, dosage form, specification, manufacturer, unit price, and purchase volume, which was collated from the hospital's procurement records.
The data contains all individual procurement information including product names, purchase dates, dosage forms, specifications, manufacturers, unit prices and volumes.
This model is a reduced-form specification of the general internal migration model introduced in Greenwood (1975).
In other words, to obtain per-capita household income, we predict per-capita income levels for households on the basis of a reduced-form specification for the determinants of household's income.
Note, however, that the log-gamma GLM, PGLM/EEE (QV) and identity-Gaussian GLM models listed in Table 3 all passed the following goodness-of-fit tests: Pearson's test for correlation between raw-scale predictions and residual errors, Pregibon's link test for functional-form specification; and modified Hosmer-Lemeshow tests for systematic patterns in the error residuals.
For example, I say to my mining clients that the objective of mining rehabilitation is to minimize the cost subject to the following conditions: land capability meets specification c, landscape form meets specification d, soil loss is within limits e, soil fertility meets specification f, and so on.
