This paper considers semiparametric inference for longitudinal data collected at irregular and possibly subject-specific times. We propose an irregular time ...

Spatial econometrics addresses the challenges posed by spatially correlated data, enabling researchers to understand and quantify how economic phenomena in one location can influence those in ...

This is a preview. Log in through your library . Abstract We have shown that the least squares estimator for a non-ergodic, first order, self-exciting, threshold autoregressive model is strongly ...