Sentence examples similar to cross sectional unit from inspiring English sources

The vector of country-specific effects is a necessary part of the model, given that in applying a panel-VAR, the restriction that the underlying structure is the same for each cross-sectional unit is required [28].

The REM assumed that (beta_{1i}) is a random variable with a mean value of (beta_{1}) and the intercept of any cross-sectional unit is expressed as (beta_{1i} = beta_{1} + varepsilon_{i}) where ɛ i is a random error term with mean 0 and variance (delta_{2} varepsilon).

In the interests of parsimony the primary descriptors were geographical and hospital-ICU level categories and the data-set was considered as a single cross-sectional unit; that is no analysis by calendar year was undertaken, although this ensured estimation stability.

There is also the assumption made clear in equation (5)—that all cross-sectional units follow the same proportional trend after the treatment.

The Pa and Pt statistics pool information over all the cross-sectional units to test whether there exists cointegration for the panel as a whole.

This allows the county-specific effects to vary over time (through changes in φ and μ) in a potentially non-linear way, but the county-specific component of the change is proportional across all cross-sectional units (that is, η i does not vary over time).

This procedure is meaningful only if both intercept and slope are not constant over cross-sectional units; if they are constant, more efficient parameter estimates can be obtained by combining all the data so that one large pooled regression is run with NT observations.

We note also that FE models are always consistent and that these are statistically a very reasonable formulation in our context because of the reduced number of cross-sectional units (23 chromosomes).

Bone formation was present in 34.4% of the evaluated cross-sectional units in the seeded scaffold but in only 10.4% of the control group.

Urinary TCPy concentration and RBC AChE activity were log-transformed prior to analysis and separated by date into four cross-sectional units.

In the end there is no significant difference between men and women in vertebral load per cross sectional area unit [16], [22], [23].