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    Wyświetlanie 1-4 z 4
    Tytuł:
    Shopping Intelligence as a New Concept in Analyzing Consumer Behaviour
    Autorzy:
    Lachowicz, Marek
    Dietl, Marek
    Powiązania:
    https://bibliotekanauki.pl/articles/1195163.pdf
    Data publikacji:
    2016
    Wydawca:
    Szkoła Główna Handlowa w Warszawie
    Tematy:
    shopping intelligence
    shopping
    consumer behaviour
    consumer psychology
    purchase
    buying
    Opis:
    Although existing models describing consumer behaviour offer a great deal of insight into the patterns and heuristic behind every customer’s buying decisions, they are not without serious limitations and operate as standalone units. Shopping intelligence, a completely new concept in economic psychology, not only attempts to merge the existing concepts into one, but to add value by allowing researchers to objectively assess respondent’s shopping style and capabilities in quantitative manner. Knowledge of these factors will allow the companies to be more competitive, by better tailoring their product, price and marketing strategies to the needs of its customers. It will also help entrepreneurs avoid losses due to inappropriate choice of the aforementioned strategies. Customers will too be beneficiaries, as they will receive a product that meets their demands better.
    Źródło:
    Edukacja Ekonomistów i Menedżerów; 2016, 42, 4; 29-43
    1734-087X
    Pojawia się w:
    Edukacja Ekonomistów i Menedżerów
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Firms default — new methodological approach and preliminary evidence from Poland
    Autorzy:
    Berent, Tomasz
    Bławat, Bogusław
    Dietl, Marek
    Krzyk, Przemysław
    Rejman, Radosław
    Powiązania:
    https://bibliotekanauki.pl/articles/22446614.pdf
    Data publikacji:
    2017
    Wydawca:
    Instytut Badań Gospodarczych
    Opis:
    Research background: Bankruptcy literature is populated with scores of (econometric) models ranging from Altman's Z-score, Ohlson's O-score, Zmijewski's probit model to k-nearest neighbors, classification trees, support vector machines, mathematical programming, evolutionary algorithms or neural networks, all designed to predict financial distress with highest precision. We believe corporate default is also an important research topic to be identified with the prediction accuracy only. Despite the wealth of modelling effort, a unified theory of default is yet to be proposed. Purpose of the article: Due to the disagreement both on the definition and hence the timing of default, as well as on the measurement of prediction accuracy, the comparison (of predictive power) of various models can be seriously misleading. The purpose of the article is to argue for the shift in research focus from maximizing accuracy to the analysis of the information capacity of predictors. By doing this, we may yet come closer to understanding default itself. Methods: We critically appraise the bankruptcy research literature for its methodological variety and empirical findings. Default definitions, sampling procedures, in and out-of-sample testing and accuracy measurement are all scrutinized. In an empirical part, we use a double stochastic Poisson process with multi-period prediction horizon and a comprehensive database of some 15,000 Polish non-listed companies to illustrate the merits of our new approach to default modelling. Findings & Value added: In the theoretical part, we call for the construction of a single unified default forecasting platform estimated for the largest dataset of firms possible to allow testing the utility of various sources of micro, mezzo, and macro information. Our preliminary empirical evidence is encouraging. The accuracy ratio amounts to 0.92 for t = 0 and drops to 0.81 two years ahead of default. We point to the pivotal role played by the information on firm's liquidity (alternatively in profitability) and — in contrast to Altman's tradition — hardly any contribution to predictive power of other financial ratios. Macro data is shown to be critical. It adds, on average, more than 10 p.p. to accuracy ratio.  In the future, we hope to integrate listed and non-listed firms data into one model, ideally at higher frequency than annual, and include the information on firm's competitiveness position.
    Źródło:
    Equilibrium. Quarterly Journal of Economics and Economic Policy; 2017, 12, 4; 753-773
    1689-765X
    2353-3293
    Pojawia się w:
    Equilibrium. Quarterly Journal of Economics and Economic Policy
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Conductance Fluctuations in Microstructures of HgCdMnTe Bicrystals
    Autorzy:
    Grabecki, G.
    Lenard, A.
    Plesiewicz, W.
    Jaroszyński, J.
    Cieplak, Marek
    Skośkiewicz, T.
    Dietl, T.
    Kamińska, E.
    Piotrowska, A.
    Bulka, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/1890700.pdf
    Data publikacji:
    1991-08
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    73.40.Lq
    Opis:
    Microscopic four-contact probes to semimagnetic HgCdMnTe grain-boundary inversion layers have been photolithographically patterned. Magnetoresistance measurements performed on these samples revealed aperiodic conductance fluctuations of the magnitude of the order of e$\text{}^{2}$/h. Quantitative analysis of both fluctuation amplitude and their mean period indicate that we have approached the mesoscopic regime in our system. This opens new possibilities in studies of spin-subsystem dynamics in semimagnetic semiconductors.
    Źródło:
    Acta Physica Polonica A; 1991, 80, 2; 307-310
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Second Harmonic Generation in Spin-Glass Microstructures and Fabrication of Microstructures in IV-VI Epilayers
    Autorzy:
    Grabecki, G.
    Dietl, T.
    Cieplak, Marek
    Plesiewicz, W.
    Lenard, A.
    Skośkiewicz, T.
    Kamińska, E.
    Piotrowska, A.
    Żarecka, R.
    Springholz, G.
    Bauer, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/1929753.pdf
    Data publikacji:
    1993-10
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    71.55.Jv
    Opis:
    We studied magnetoconductance of two different mesoscopic systems: microregions containing two-dimensional electron gas adjacent to a grain-boundary plane in bicrystals of Hg$\text{}_{0.79}$Cd$\text{}_{0.19}$Mn$\text{}_{0.02}$Te and photolithographically patterned microstructures of Pb$\text{}_{1-x}$Mn$\text{}_{x}$Se. In both systems universal conductance fluctuations and generation of the second-harmonic voltage were observed at T ≤ 1 K. Moreover, in the former system the second harmonic signal exhibited distinct rise when the sample was cooled below the spin-glass freezing temperature (100 mK).
    Źródło:
    Acta Physica Polonica A; 1993, 84, 4; 781-784
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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