This paper presents an econometric nonlinear model of the 9 Belgian provinces. There are 7 equations for each province, thus 63 equations in all. The variables used are defined on three levels: the province considered, the other provinces (some or all of them), the rest of the world. The estimation procedures go from ordinary least squares to methods used for generalized variance components models and to a scanning maximum likelihood method.
Land use planning is generally analysed in terms of either activity location or transfortation planning. Often further reductions of mutual interrelations are made a priori. It is the purpose of this paper to discuss an integrated model framework for urban planning based on an explicit consideration of the total interdependency pattern. A principally hierarchical decomposition scheme for the expansion and use of urban infrastructure is proposed and the structure of appropriate sub-models is outlined. Tentative results from the model testing are given. In the analysis of the sub-models various interdependencies not accounted for by a strict hierarchical model structure are observed. The significance of such model interactions in relation to efficiency criteria is considered in some detail.
A logical classification of warehouse problems allows a systematic treatment of their solution procedures.
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