Sentence examples for unobserved effects from inspiring English sources

In contrast to previous studies on other markets, we control for unobserved effects using a fixed-effects panel regression.

The results also highlight the presence of site-specific unobserved effects influencing the speed distribution.

Thus, we believe there are unobserved effects that are specific to the destination country.

This approach allows us to eliminate individual-specific unobserved effects that may otherwise confound the identification of a cannibalization effect.

This paper focuses on modeling unobserved effects in route-switching dynamics under advanced traveler information systems (ATIS).

They show that under certain assumptions it is possible to explain changes in the value of unobserved effects as a non-parametric function of the observed characteristics and the initial unobserved effects.

This model allows for correlation between the unobserved effect and the explanatory variables by assuming that the conditional distribution of the unobserved effect is normal with a conditional expectation that is a linear index in the observed explanatory variables.

Our strategy to deal with the unobserved individual effect is to simply evaluate the unobserved effect at the mean for everyone, α i  = 0, both for the dynamic and the static model.

12We adopt the random-effects setting, the variation across immigrants is treated as random, and the unobserved effect is also assumed to be uncorrelated with the explanatory variables.

However, this problem is overcome by estimating the negative binomial regression (NBR) model, in which a cross-section heterogeneity is naturally formulated by introducing an unobserved effect into the conditional mean (Greene 2002).

The most significant advantage of this is that it is possible to obtain correct estimates for the parameters of the variables actually included in the model even if they are correlated with an unobserved effect.