Postiglione, Paolo - In: RIVISTA DI ECONOMIA E STATISTICA DEL TERRITORIO 2012/3 (2012) 3, pp. 59-77
The hypothesis of homoscedasticity of errors is convenient for the simplification of the estimation procedures. Unfortunately, this assumption is rather restrictive in the case of the analysis of spatially distributed data. Spatial units, in fact, can be very different in size and in other...