what is the example of the variable x_it$ in fixed effect model what model is dependent and observable? how to explain the model for fixed effect which model has the dependent variable unobserved what are examples of time dependent variable in fixed effects is the econometrician able to observe the fixed effect? is fixed effects unobserved which model allows for the observation of time-invariant individual effect fe model for time-independent variable when unobserved variables are added to a fixed effect model, an unobserved variable is added to a time-invariant matrix. is the fixed effect a random variable is fixed effect observable which model is an empirically based variable for a fixed effect? what is a fixed effect re which statement describes the model of time independent effect? is the unobserved effect linear what is an example of a fixed effects model what is the fixed effect is fixed effect a variable which model allows an individual to have an unobserved fixed effect