Číslo 30, ročník XI

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Comparison of Neural Networks and Regression Time Series in Estimating the Development of the Afternoon Price of Palladium on the New York Stock Exchange
(Vysoké učení technické v Brně, Fakulta podnikatelská, 2018-01) Vochozka, Marek
Purpose of the article: Palladium is presently used for producing electronics, industrial products or jewellery, as well as products in the medical field. Its value is raised especially by its unique physical and chemical characteristics. Predicting the value of such a metal is not an easy matter (with regard to the fact that prices may change significantly in time). Methodology/methods: To carry out the analysis, London Fix Price PM data was used, i.e. amounts reported in the afternoon for a period longer than 10 years. To process the data, Statistica software is used. Linear regression is carried out using a whole range of functions, and subsequently regression via neural structures is performed, where several distributional functions are used again. Subsequently, 1000 neural networks are generated, out of which 5 proving the best characteristics are chosen. Scientific aim: The aim of the paper is to perform a regression analysis of the development of the palladium price on the New York Stock Exchange using neural structures and linear regression, then to compare the two methods and determine the more suitable one for a possible prediction of the future development of the palladium price on the New York Stock Exchange. Findings: Results are compared on the level of an expert perspective and the evaluator’s – economist’s experience. Within regression time lines, the curve obtained by the least squares methods via negative-exponential smoothing gets closest to Palladium price line development. Out of the neural networks, all 5 chosen networks prove to be the most practically useful. Conclusions: Because it is not possible to predict extraordinary situations and their impact on the palladium price (at most in the short term, but certainly not over a long period of time), simplification and the creation of a relatively simple model is appropriate and the result is useful.
Selected Microeconomic Effects of Ict Firms in Context of Level of Sectoral Concentration: Case Study in Selected Regions of the Czech Republic
(Vysoké učení technické v Brně, Fakulta podnikatelská, 2018-01) Turečková, Kamila
Purpose of the article: It is assumed that a strongly territorially concentrated branch that transformed into the sectoral agglomeration of identical companies in terms of the branches is specific for a range of its network externalities such as positive effects resulting from a qualified workforce, spreading innovation and transferring knowledge, experience and information. In general terms, some microeconomic factors and relevant variables will be perceived differently by ICT firms in the context of the different intensity of the sectoral concentration in the particular territory. Methodology/methods: The contribution is based on the primary research performed among ICT companies in two Czech selected regions expressing their attitudes and opinions in the context of the branch concentration emphasizing the specific localization of these companies within the centres, or on the periphery. The theoretical basis includes in particular „the coreperiphery theory“ and the New Economic Geography extended by the concept of the sectoral agglomerations and also selected theories of the period of post-Fordism. Scientific aim: The presented contribution deals with the specification of the chosen microeconomic effects of the branch con-centration of companies in the ICT sector of the given area, and defines differences in factors of the branch concentration of ICT companies. Findings: Based on the performed research, it was discovered that more than 60 % of the companies perceive branch concentration positively and consider its effect beneficial and desired. From interregional comparisons follows that ICT firms in the Moravian-Silesian Region are more decided towards their employees. South Moravian ICT firms feel less dependent on other ICT firms, but are less aware of their competition. Conclusions: The results of the research reflect the assumptions of the chosen theoretical framework and support the conclusion that it is suitable for ICT companies to do business in a region where the ICT sector is concentrated.
Social Media Metrics Importance and Usage Frequency in Latvia
(Vysoké učení technické v Brně, Fakulta podnikatelská, 2018-01) Praude, Valerijs; Skulme, Ronalds
Purpose of the article: The purpose of this paper was to explore which social media marketing metrics are most often used and are most important for marketing experts in Latvia and can be used to evaluate marketing campaign effectiveness. Methodology/methods: In order to achieve the aim of this paper several theoretical and practical research methods were used, such as theoretical literature analysis, surveying and grouping. First of all, theoretical research about social media metrics was conducted. Authors collected information about social media metric grouping methods and the most frequently mentioned social media metrics in the literature. The collected information was used as the foundation for the expert surveys. The expert surveys were used to collect information from Latvian marketing professionals to determine which social media metrics are used most often and which social media metrics are most important in Latvia. Scientific aim: The scientific aim of this paper was to identify if social media metrics importance varies depending on the consumer purchase decision stage. Findings: Information about the most important and most often used social media marketing metrics in Latvia was collected. A new social media grouping framework is proposed. Conclusions: The main conclusion is that the importance and the usage frequency of the social media metrics is changing depending of consumer purchase decisions stage the metric is used to evaluate.
Development of Investment Strategy Applying Corporate Social Responsibility
(Vysoké učení technické v Brně, Fakulta podnikatelská, 2018-01) Kuzmina, Jekaterina; Lindemane, Marija
Purpose of the article: Due to globalization processes and technological development, companies are having more influence on global society than ever. Therefore, business misconduct causes enormous harm to stakeholders, whereas ethical behavior is becoming an important issue. The goal of the following study is to verify and measure a positive effect from investments in social activities on financial attractiveness of companies in the form of its stock portfolio value growth. Methodology/methods: In order to achieve the goal of the research, quantitative analysis is used by comparing performance of stock portfolio of companies having long-term investments in social activities with market index increment. The quantitative results are accompanied with the review of corporate social responsibility definition and some practical issues on governmental and corporation level. Scientific aim: The conducted research contributes both to the scientific discussion about development of appropriate investment strategy in companies applying CSR principles as well as to the discussion of related terminology used in the field. Findings: The research has shown that engagement in the CSR activities tends to have strong positive effect on companies’ financial results and investors’ financial performance. The research proves this fact by comparing value increment of CSR-portfolio (+35.99% gained from January 2015 to March 2017) with market index (+22.37% in the same period). Conclusions: Regardless the positive result achieved in the study the authors have determined several gaps in the research, which will be discussed in the further studies on the field.
Succession Planning and Job Commitment: Moderating Role of Employees’ Satisfaction in Selected Beverages Companies in Lagos Metropolis
(Vysoké učení technické v Brně, Fakulta podnikatelská, 2018-01) Olatunji, Fadeyi; Kehinde, Oladele Joseph; Nwachukwu, Chijioke
Purpose of the article: Succession planning has become a misconstrued phenomenon in a global environment where organisations largely depend on their human resources for achievement, continuity and effectiveness. Methodology/methods: Data for this research were collected from three Beverages companies in Lagos, Nigeria, with 244 administered questionnaires, retrieved and analysed using the regression analysis. Scientific aim: This paper examines the Moderating Role of Employees’ Satisfaction on Succession Planning and Job Commitment in the manufacturing sector. Findings: The result showed that succession planning significantly impact on employees’ job commitment. The findings indicated a variance of 52% between mentoring and affective commitment, however when the moderating variable of employees’ satisfaction was established, the R-squared increased to 56.8% while the significance of the F-change assessed show significance at 0.0001. Conclusions: The study recommends that when organizational replacement is done, it should meet the present and future need as well as the corporate objectives of the organization and that management should handle the issue of Succession Planning with high sense of objectivity in order to achieve organizational efficiency, among others.

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