In spatial autoregressive models, spatial autocorrelations in the dependent (or omitted) variable are modeled. Dependency is measured under known spatial structures, typically represented as a spatial weight matrix (W). For ordinal spatial autoregressive models, a unique W exists, and the...

Currently, there are a number of environmental issues that are of global concern, such as global warming, acid rain and ozone layer depletion. The resulting damages are not necessarily confined to only the country where the pollutants are emitted. Hence, multiregional and multilateral...