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- ItemManagement of business informatics model – principles and practices(Technická Univerzita v Liberci, 2015-09-04) Voříšek, Jiří; Pour, Jan; Buchalcevová, Alena; Ekonomická fakultaIncreasing requirements on the extent and quality of business informatics management have resulted in a development of various methodologies, models, frameworks and standards (e.g. ITIL, COBIT, ISO 20000, etc.). These methodological sources represent current best practices and include recommendations addressing various IT management issues encountered in practice. However, their application in practice brings along numerous problems as showed by the results of recent surveys conducted among Czech organizations. Moreover, their use, in particular in small and medium sized enterprises, is still very limited. In this paper we discuss existing IT management approaches and their limitations with a particular focus on Czech organizations. We base our discussion on available literature, our surveys of Czech organizations and our experiences gained from practical assignments. The MBI (Management of Business Informatics) model developed at the Department of Information Technologies, University of Economics in Prague attempts to overcome such limitations of existing methodologies and models. We describe the basic concepts and features of the MBI model. The MBI model represents an original solution that brings along essential advantages over existing business informatics management methodologies. To such advantages primarily belong monitoring links between individual objects and the possibility to utilize these links as search criteria. Furthermore, the model captures an influence of various business informatics factors on the MBI tasks and enables to adjust its context according to these factors. In addition, the MBI model metrics and analytical applications monitor IT investment effectiveness. The MBI model is available as a web application (at website mbi.vse.cz) and the MBI community participates on its further development.
- ItemLoad balancing location of emergency medical service stations(Technická Univerzita v Liberci, 2015-09-04) Jánošíková, Ľudmila; Gábrišová, Lýdia; Ježek, Bruno; Ekonomická fakultaWhen we want to design a successful and efficient emergency medical system, the crucial task is to determine the number of ambulances operating in a given region and the deployment of stations where the ambulances are kept. In the Slovak Republic, the number and locations of stations are specified by the Ministry of Health for the whole state territory. In the Czech Republic, the network of stations is established by the local authority for each administrative region. Due to geographical and population diversity, there are significant differences in population served by individual ambulances. Assuming that the number of ambulances is given, we want to investigate whether a different location of the ambulances might result in a more even distribution of their workload and, consequently, shorter response time. The problem is modelled as a capacitated p-median problem and solved using mathematical programming. The capacitated p-median problem is known to be NP-complete. As a consequence, it cannot be solved to optimality even for moderate-sized problem instances. However, we face a large-scale problem instance consisting of almost 3,000 demand nodes. Therefore heuristic approaches need to be used to get a sufficiently good solution in an acceptable time. Two decomposition mathematical heuristics are described in the paper and a new heuristic method based on previously developed approaches is presented. A redeployment of existing EMS stations in the Slovak Republic is calculated using these methods. The results are compared mutually and with the current deployment. The benefits and limitations of the presented methodology are discussed.
- ItemTesting the efficacy of information transmission: is equity style index better than stock market index?(Technická Univerzita v Liberci, 2015-09-04) Lau, Wee-Yeap; Lee, Chin; Ekonomická fakultaThis paper examines the ability of equity style to predict future movement of composite leading economic index in a multivariate Granger causality framework. By comparing the efficacy of information transmission between equity style index and Bursa Malaysia Industrial Index, our results show that there is unidirectional causality from growth style to leading economic index. Second, there is also unidirectional flow from growth style to Bursa Malaysia Industrial Index. Third, there is a bidirectional relationship between growth style and KLCI broad market index. Finally, there is bidirectional causality between both growth style and value style. Further analysis from cross-correlation function reveals that growth style index is better than Bursa Malaysia Industrial Index. The former provides accurate and stronger cross-correlation with leading economic index. From these empirical evidences, it can be concluded that growth style index is a leading indicator which has more economic content than stock market index. It is better than stock market index in its efficacy of information transmission. The study brings to the awareness to policy makers and practitioners of the usefulness of equity style in constructing future leading economic index and early warning system of financial crisis.
- ItemStock market reaction to ict implementation: model based on comparison of developed and transition economies(Technická Univerzita v Liberci, 2015-09-04) Janke, František; Packová,Miroslava; Prídavok, Mojmír; Ekonomická fakultaCompanies are more productive, grow faster, invest more, and are more profitable when using Information and Communication Technology (ICT) more intensively. Several studies provided evidence that implementation of ICT into companies’ processes contributes to economic growth both on companies’ and macroeconomic level. In spite of wide range of studies in this area, only few studies focused on how the ICT implementation is perceived by investors at stock market and whether this information make movements in companies’ shares prices. Hence, the purpose of this paper is to provide literature overview related to the area of the impact of ICT implementation on company´s stock price, comparing results from developed (US) and transition economies (Czech Republic, Hungary, Poland and Slovakia) and using the results from relevant literature to provide a comparison of incidence of particular factors´ influence on the impact of ICT implementation on company’s stock prices. Based on the previous researches, a model describing factors that influence company’s stock price movement after ICT solution implementation and announcement, has been created.
- ItemA debt sustainability analysis of the czech republic and the slovak republic: a non parametric approach(Technická Univerzita v Liberci, 2015-09-04) Farkašovský, Vlastimil; Lawson, Colin William; Zimková,Emília; Ekonomická fakultaSurging public debt since the Great Recession has focused increasing attention on the issue of debt sustainability. This paper provides debt sustainability analyses for the Czech Republic and Slovakia by estimating their public debt to GDP, and primary balance to GDP ratios up until 2022 under three different projections. The first, labelled the baseline projection, predicts their debt ratios to 2022, if neither their public debt to GDP ratios nor their primary balance to GDP ratios change. This projection uses the official forecasts of the key variables. The second projection answers the question of how much the two counties have to consolidate, measured by their primary balance to GDP ratios, if they want to hold their public debt to GDP ratios at their current levels. The third projection answers the question of how much the countries have to consolidate if they aim to re-attain their December 2008 pre-crisis public debt to GDP ratios. All three projections are made for the same five scenarios, which cover a status quo case, where official forecasts are realized, and both optimistic and pessimistic scenarios for growth and consolidation outcomes. The paper`s novelty lies in its development of an existing non-parametric methodology to encompass iterative numerical solution methods to assess public debt sustainability. This allows a richer set of results to be obtained, for example estimates for the required level of the public debt to GDP ratio, and the primary balance to GDP ratio, taking account of variables such as nominal interest rates, yields to maturity on public debt, inflation rates and average maturities of debt.
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