Numerous imputation methods have been developed for missing data. However, these methods apply mainly to independent data, and the assumption of independence disregards connections of units through ...

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 ...

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This paper introduces new spatial stochastic frontier models to examine Spanish provinces’ efficiency and its evolution over the period 2000–2013. We use a heteroscedastic version of the spatial ...