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    Wyświetlanie 1-4 z 4
    Tytuł:
    Optimizing of a Company’s Cost under Fuzzy Data and Optimal Orders Under Dynamic Conditions
    Autorzy:
    Sobol, Irena
    Kacprzak, Dariusz
    Kosiński, Witold
    Powiązania:
    https://bibliotekanauki.pl/articles/429885.pdf
    Data publikacji:
    2014
    Wydawca:
    Uniwersytet w Białymstoku. Wydawnictwo Uniwersytetu w Białymstoku
    Tematy:
    Ordered Fuzzy Numbers
    defuzzification
    Economic Order Quantity Model
    optimal order quantity
    Opis:
    The purpose of this article is to suggest tools of inventory management which would determine economically optimal order quantities. One of them is based on the so-called fixed order quantity model which takes into account several elements of inventory cost, such as ordering cost, transportation and storing cost, frozen capital cost, as well as extra discounts. The tool is based on fuzzy concepts represented by Ordered Fuzzy Numbers. The second tool takes into account the dynamics and works on the basis of replenishment system. This tool can be treated as a kind of controller. Examples of using this tools are presented.
    Źródło:
    Optimum. Economic Studies; 2014, 5(71)
    1506-7637
    Pojawia się w:
    Optimum. Economic Studies
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analysis Of Convergence Of European Regions With The Use Of Composite Index
    Autorzy:
    Górna, Joanna
    Górna, Karolina
    Powiązania:
    https://bibliotekanauki.pl/articles/466073.pdf
    Data publikacji:
    2015
    Wydawca:
    Główny Urząd Statystyczny
    Tematy:
    economic convergence/divergence spatial autocorrelation
    spatial econometric model composite index
    Opis:
    Convergence study is related to several crucial issues. One of those problems is an individual character of every region in the selected area, as the regions established accordingly to the European classification system NUTS-2 are not homogeneous. Therefore, while analysing convergence in the European Union, regions with extremely dissimilar characteristics (for example GDP per capita) are taken under consideration. Absolute β-convergence means that all of the investigated regions tend to the same level of economic growth. Thus, among the regions with highly differential amounts of the examined variables the convergence hypothesis can be rejected. Due to the heterogeneity in the conducted investigation a classification based on the composite index will be used so that the convergence clubs could be established. Several approaches to convergence will be used according to those regimes. Moreover, there will be an attempt to indicate the determinants that differentiate the selected regions, such as: expenditure on R&D, HRST, quantity of patents, employment, participation of people in tertiary education among all employees. This will allow the analysis of conditional β-convergence to be conducted. In the investigation some methods and models offered by the spatial statistics and econometrics will be used. There are empirical proofs that geographical location has a great impact on the processes of economic growth. Consequently, spatial dependencies will be analysed as well.
    Źródło:
    Statistics in Transition new series; 2015, 16, 2; 265-278
    1234-7655
    Pojawia się w:
    Statistics in Transition new series
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Using Symbolic Data In Gravity Model Of Population Migration To Reduce Modifiable Areal Unit Problem (Maup)
    Autorzy:
    Wilk, Justyna
    Powiązania:
    https://bibliotekanauki.pl/articles/465932.pdf
    Data publikacji:
    2015
    Wydawca:
    Główny Urząd Statystyczny
    Tematy:
    modifiable areal unit problem (MAUP)
    symbolic data analysis (SDA)
    gravity model
    population migration
    economic distance
    Opis:
    Spatial analyses suffer from modifiable areal unit problem (MAUP). This occurs while operating on aggregated data determined for high-level territorial units, e.g. official statistics for countries. Generalization process deprives the data of variation. Carrying out research excluding territorial distribution of a phenomenon affects the analysis results and reduces their reliability. The paper proposes to use symbolic data analysis (SDA) to reduce MAUP. SDA proposes an alternative form of individual data aggregation and deals with multivariate analysis of interval-valued, multi-valued and histogram data. The paper discusses the scale effect of MAUP which occurs in a gravity model of population migrations and shows how SDA can deal with this problem. Symbolic interval-valued data was used to determine the economic distance between regions which served as a separation function in the model. The proposed approach revealed that economic disparities in Poland are lower than official statistics show but they are still one of the most important factors of domestic migration flows.
    Źródło:
    Statistics in Transition new series; 2015, 16, 2; 243-264
    1234-7655
    Pojawia się w:
    Statistics in Transition new series
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The European social model – between crisis and system’s adaptability
    Autorzy:
    Jadwiga, Nadolska,
    Powiązania:
    https://bibliotekanauki.pl/articles/894835.pdf
    Data publikacji:
    2020-03-21
    Wydawca:
    Uniwersytet Warszawski. Wydawnictwa Uniwersytetu Warszawskiego
    Tematy:
    European social model
    welfare state
    globalisation
    ageing of the society
    neoliberalism
    third way
    active social policy
    economic crisis 2008+
    Opis:
    The Author of the article sets as a research goal the diagnosis of the role of the ideological factor and objective structural conditions in the evolution of regulated capitalism on the European continent. In the text the European social model was characterized, the influence of globalisation on the regulated European capitalism was analyzed, the challenges of demography which are posed for the social structures, the job market and social security in Europe were discussed. The Author analysed the changes happening on the European job market since the 1980s in the field of institutional solutions, position of the employee, policy tools for the job market. The convergence and divergence dynamic in the development of the European social policy and the role of the EU institutions in managing the problems of modern Europe were analysed. Finally the influence of the Eurozone’s economic crisis on the EU social policy was diagnosed. In order to operationalise the research, historical and comparative methods will be used as well as institutional analysis and social index analysis.
    Źródło:
    Przegląd Europejski; 2015, 4 (38); 28-53
    1641-2478
    Pojawia się w:
    Przegląd Europejski
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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