RESUMO
In the real world, acceptance of a decision is conditional on the availability of a great volume of data. Selection of a suitable solution on the basis of this data represents a problem that multi-criterial methods (MCDM) are applied to. The issue of which of these should be favoured during their use involves a specification of the importance of the assessed criteria. The goal of the presented research is to quantify the differences (symmetry) in assessment using selected MCDM methods (Technique for Order of Preference by Similarity to Ideal Solution-TOPSIS), while applying an absolute and relative variability of the assessed criteria to a determination of their importance. The obtained results indicate that the order of the assessed subject (alternative) is not directly influenced by the method of determining the variability of the assessed criteria. We can also state that the degree of concurrence in the order of application of the TOPSIS technique, in combination with both approaches expressed by the Jaccard index, is relatively low.
Assuntos
Projetos de PesquisaRESUMO
The global pandemic caused by the new coronavirus has largely changed established business practices. The aim of this study is to present the results of eighteen months of intensive research into the effects of the pandemic on e-consumer behavior. In one of the most active e-commerce markets in Europe, the Czech Republic, we analyzed a sample of more than one and a half million Facebook users in terms of their C2B interactions on the B2C activities of the five major e-commerce market players. The measurements were carried out in three periods, which corresponded to the onset of the first wave, the peak, and the fading of the second wave of the pandemic. This enabled us to monitor the effect of seasonality and the stabilization of patterns of consumer behavior during the coronavirus crisis. The results suggest that a specific panic pattern of e-consumer behavior was developed at the time of the onset of the pandemic. However, as the pandemic progressed, the market adapted to a new normal, which, as evidenced by the change in trends, appears to be a combination of the pre-pandemic and pandemic behavioral patterns. Using a statistical analysis, it was possible to identify the delta of changes within the patterns of consumer behavior, thus fulfilling the final condition for creating an empirical model of the impacts of the COVID-19 pandemic on e-consumer behavior presented in this study.
RESUMO
The availability of public services has been perceived as one of the parameters for evaluating the quality of services and a basic component of the effectiveness of the system. Social services have been understood as public services in the countries of the European Union. The state has the primary responsibility for ensuring the availability of social services and should have established powers in the areas of planning, coordination and evaluation. The aim of this paper is to comprehensively evaluate the availability of homes for seniors aggregated into individual districts of the Czech Republic. The method of multi-criteria decision-making was chosen for the evaluation, specifically the Technique for Order of Preference by Similarity to Ideal Solution in combination with the Coefficient of Variance method, as a method for the objective determination of the weights of input indicators. The evaluation in 2017 included 77 districts of the Czech Republic and 519 homes for seniors, which are registered providers of social services for persons who, due to age and reduced self-sufficiency, cannot take care of themselves and are users of residential social services. Based on 14 defined indicators, the local accessibility within individual districts of the Czech Republic was evaluated, focusing on five research questions. The indicators were defined in such a way as to reflect the nature of the problems and to define the need for this service in the territory. Based on the results, a significant relationship was demonstrated between the amount of subsidy per bed, per month, granted to homes for seniors in individual districts of the Czech Republic and service availability, i.e. districts in which homes for seniors with higher subsidies per bed show better availability.
