We propose a modeling approach based on set of small-scale factor models linked together in cluster with linkages derived from Granger causality tests. GDP forecasts are produced using disaggregated across production, expenditure and income accounts. The method combines the advantages large structural macroeconomic small models, making our dynamic (CDFM) useful for large-scale model-consistent ...

in dea to obtain an efficient representation in ccr andbcc models for each dmu only one linear plan would be solved; however,it is possible in centralized resource allocation (cra) to solve allthe dmus by one linear planning. in this paper, models of centralizedresource allocation in input-oriented and in dynamic case will be offeredand by using dynamic sbm, the representation of dmus in each t...

in this paper, the main factors in the analysis of the railway concrete sleepers areinvestigated and new recommendations are made in order to improve the accuracy of the currentpractices in analysis of the railway track system. first, a comprehensive literature survey isconducted, then, fem models for a railway track system are developed and used to discuss andevaluate the assumptions commonly ...