We present the generalized hybrid averaging (GHA) operator. It is a new aggregation operator that generalizes the hybrid averaging (HA) operator by using the generalized mean. Thus, we are able to generalize a wide range of mean operators such as the HA, the hybrid geometric averaging (HGA), the...

Hierarchical aggregation/disaggregation of time series in order to make forecasts is a frequent challenge in business and econometric scenarios. This work presents a novel approach for selecting an adequate time series disaggregation level as a starting point for making forecasts. The...

Das Ziel, mehr Frauen in Spitzengremien der Wirtschaft zu berücksichtigen, findet sowohl in der Öffentlichkeit als auch in der Politik immer stärkere Beachtung. Die Forderungen nach einer Frauenquote und die öffentlichkeitswirksame Bestellung von vier Frauen in die Vorstände der...

Die unternehmerische Selbständigkeit hat in Deutschland in den letzten 20 Jahren einen starken Aufschwung erfahren. Die Zahl der Selbständigen ist zwischen 1991 und 2009 um 40 Prozent gestiegen. Verantwortlich für diese Entwicklung sind die Nachholprozesse in Ostdeutschland, der...

Trotz der Selbstverpflichtung der Wirtschaft zu mehr Frauen in Führungspositionen waren 2012 nur vier Prozent aller Vorstandsund fast 13 Prozent aller Aufsichtsratssitze in den Top-200-Unternehmen in Deutschland von Frauen besetzt. Dies entspricht einem Anstieg von jeweils einem Prozentpunkt...

This paper examines responses to questions on wage setting features in Slovenia’s Wage Dynamics Network (WDN) survey in the institutional and macroeconomic context of the Slovene economy. The question on collective wage agreement did not capture the prevailing institutional arrangement of...

In this paper, a fuzzy multiobjective mathematical programming model for operational transport planning in a supply chain is presented. The objectives of the proposed model are the minimization of the number of used trucks and the total inventory level, by considering vehicle capacities as a...

This paper presents a critical analysis of some of the techniques which are applied in practice to obtain composite indicators from a previous sub-indicator system. In studying each methodology, we identify the advantages and disadvantages associated with them, paying particular attention to...

This paper analyzes the importance of having a network of stations adapted to vehicles carrying dangerous goods. In the r̄st place, it is studied the current demand which is offered by the existing parking areas, and in the second place, it is explained a maximum coverage location model in...

The generalized truck-and-trailer routing problem (GTTRP) constitutes a uniēd model for vehicle routing problems with trailers and a fixed lorry-trailer assignment. The GTTRP is a generalization of the truck-and-trailer routing problem (TTRP), which itself is an extension of the well-known...