to determine which aggregation model leads to the best out-of-sample estimates for the portfolio's economic risk figure …

Handelsblatt in 2009. Its methodology, however, is problematic in regard of the underlying data base and the methods of aggregation … aggregation methods. Furthermore, we identify possible influencing factors. Finally, the data gets aggregated at the level of …

aggregation is that the consensus ordering well reflects the input data, i.e., agents' judgements and importance. The scientific … literature encompasses several aggregation techniques, even if it does not include a versatile tool for a quantitative assessment … aggregation technique in use; for this reason, it can be applied to a variety of practical contexts and used to compare the …

regional aggregation (Jacobs-Crisioni et al., 2014; Kang et al., 2014, Baltagi, Li, 2014). Currently, hierarchical models can … 2011years are used. We also include two levels of data aggregation: into 12 economic regions and into 8 federal districts … regional aggregation. H2: The estimation results of spatial-econometric models depend on the choice of the method of estimation …