University of Economics in Katowice is a higher education institution in Katowice, Poland. The university was founded as Wyższe Studium Nauk Społeczno-Gospodarczych and first classes started on January 11, 1937. In 1946 the school moved to its current location.Currently it has over 11 thousand students located on two campuses: Katowice and Rybnik. Wikipedia.
wierczek A.,University of Economics in Katowice
International Journal of Production Economics | Year: 2014
Supply chains are now more than ever exposed to the disruptions which may be propagated and amplified, and thus manifest the phenomenon of the "snowball effect". One of its major drivers are integrated relationships between supply chain partners. This is a very striking observation, as integration determines the supply chain efficiency, and is often promoted as somewhat of a Silver Bullet of supply chains, the essence or pillar of the concept. Yet, it may lead to an excessive mutual dependence of companies in a supply chain. Consequently, over-dependence may cause the "snowball effect" in the transmission of disruptions in part of or in the whole supply chain. There are two dimensions of supply chain integration considered in the paper. The first one is the intensity while the latter one is the span of supply chain integration. The intensity of supply chain integration reflects the relationship quality between partners and may take a form of non-integrated, through partially, and finally, to fully integrated relationships. The span of supply chain integration refers to the network perspective of supply chains and, regarding the type of supply chain members, one may distinguish between basic, extended and ultimate supply chain structures. The purpose of the study is to empirically evaluate a model for the "snowball effect" linking intensity and span of supply chain integration to the amplification of transmitted disruptions. In order to achieve a research goal of the paper, statistical analysis has been performed. The partial least square (PLS) approach for the "snowball effect" in the transmission of disruptions was employed. The PLS Path Model of this study consists of the inner (structural) model and the outer (measurement) model. First, the reliability and validity of the measurement model was assessed, followed by the assessment of the structural model. In order to evaluate the model a survey data obtained from 117 manufacturing and trading companies being major links in their supply chains was used. The general findings show that the intensity of supply chain integration may contribute the 'snowball effect' in the transmission of disruptions in the material and information flow, while the span of integration may weaken the strength of disruptions in both types of flow in supply chains. © 2013 Elsevier B.V. All rights reserved.
Ziemba E.,University of Economics in Katowice
Journal of Computer Information Systems | Year: 2013
The purpose of this research was to propound the conceptual model of a sustainable information society. First, the essence of a sustainable information society in the context of an information society concept is presented. Secondly, different kinds of phenomena and trends of sustainable information society development are identified and diagnosed. Thirdly, assumptions for the model of a sustainable information society are formulated. Finally, special attention is given to the presentation of the sustainable information society model. Discussion of research findings and future works for both researchers and practitioners complete the paper.
Olszak C.M.,University of Economics in Katowice
2013 Federated Conference on Computer Science and Information Systems, FedCSIS 2013 | Year: 2013
The main purpose of this paper is to assess the level of Business Intelligence (BI) maturity in organizations. The research questions I ask in this study are: (1) what possibilities offer BI systems for different organizations, (2) how to measure and evaluate the BI maturity in organizations The study was based on: (1) a critical analysis of literature, (2) a observation of different BI initiatives undertaken in various organizations, as well as on (3) semi-structured interviews conducted in polish organizations in 2012. Some interviews, conducted in 20 polish enterprises, were held with executives, senior members of staff, and ICT specialists. The reminder of my paper is organized as follows. Firstly, the idea of BI is described. Next, the issue of BI maturity models is recognized. Finally, Garter's Maturity Model for Business Intelligence and Performance Management is used to assess the level of BI in surveyed organizations. © 2013 Polish Information Processing Society.
Gamrot W.,University of Economics in Katowice
Mathematical Population Studies | Year: 2014
The knowledge of first-order inclusion probabilities characterizing a sampling scheme is essential in design-based estimation of finite population totals. Sometimes the scheme is so complex that these probabilities cannot be computed exactly. Instead, both inclusion probabilities and corresponding sampling weights are simulated. One empirical Horvitz-Thompson estimator for a population total using simulation-based range-preserving estimates of sampling weights is obtained by applying the restricted maximum likelihood principle directly to each inclusion probability. The assumption of a prior distribution and the assessment of resulting posterior for a weight lead to two other estimators. One of them is the posterior mean estimator of the Horvitz-Thompson statistic. In a simulation involving Polish agricultural census data and a sequential fixed-cost sampling scheme, this estimator has attractive properties also from a frequentist point of view. © 2014 Copyright Taylor and Francis Group, LLC.
Kisperska-Moron D.,University of Economics in Katowice |
De Haan J.,University of Tilburg
International Journal of Production Economics | Year: 2011
Mass, lean and agile production philosophies, although widely discussed, still cause considerable confusion both among academics and in practice. De Haan and Overbooms' characterizations of lean (what, when needed but perfect) and agile (first, fast and best) show the paradigmatic differences between the two. When applied in a case study in Poland on a distributor of lifestyle oriented fast moving consumer goods, established after the transition, it appeared that these characterizations enabled a proper description and analysis. During the volatile period (19962002) an agile approach provided the flexibility and competitiveness needed. However, when the market matured the overly expensive agility caused last minute crisis. Then a lean approach enabled the optimization of processes needed to supply customer in a more reliable way. Both approaches stress different aspects but have quite a few tools in common. The paper does not try to answer the question whether one approach could outperform the other but indicates when one concept could be more useful than the other. © 2010 Elsevier B.V. All rights reserved.