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    Wyświetlanie 1-4 z 4
    Tytuł:
    The Purchasing Power Parity Puzzle and Imperfect Knowledge: The Case of the Polish Zloty
    Autorzy:
    Kelm, Robert
    Powiązania:
    https://bibliotekanauki.pl/articles/2076449.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    purchasing power parity
    expectations
    econometric modelling
    cointegration
    transition economies
    Nauki Humanistyczne i Społeczne
    Opis:
    A review of the contemporary mainstream literature on exchange rate modelling clearly indicates that the rational expectations hypothesis (RE) is almost invariably taken as a point of reference in empirical investigations. This paper tests the RE hypothesis for the Polish foreign exchange market within the Roman Frydman and Michael Goldberg model that builds on the hypothesis of imperfect knowledge economics (IKE). The employed modelling strategy consists in the formulation of assumptions about the persistence of nominal rate, prices and interest rates and of the verification of competing scenarios congruent with RE and IKE. As a result of the analysis, the RE hypothesis is rejected in favour of the IKE alternative
    Źródło:
    Central European Journal of Economic Modelling and Econometrics; 2017, 1; 1-27
    2080-0886
    2080-119X
    Pojawia się w:
    Central European Journal of Economic Modelling and Econometrics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Foreign Direct and Portfolio Investment in the Contemporary Globalized World: Should They Be Still Treated Separately?
    Autorzy:
    Humanicki, Marcin
    Kelm, Robert
    Olszewski, Krzysztof
    Powiązania:
    https://bibliotekanauki.pl/articles/2076429.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    foreign direct investment
    foreign portfolio investment
    emerging market economies
    econometric modeling
    cointegration
    Nauki Humanistyczne i Społeczne
    Opis:
    Foreign direct investment (FDI) and foreign portfolio investment (FPI) have been long considered as independent forms of international capital flows. This paper analyzes the mutual relationship between FDI and FPI and attempts to answer the question whether they complement or substitute for each other from a foreign investor’s point of view. The paper describes the main characteristics of FDI and FPI in terms of their volatility and profitability. We analyze the long-run and short-run relationships between FDI and FPI using vector error correction (VEC) regressions on data for Poland as it is the largest country in Central and Eastern Europe and receives the lion’s share of these two forms of capital in the region. Our investigation suggests that FDI and FPI may be regarded as substitutes. In economically stable periods FDI tends to dominate over FPI but during insecurity and economic distress FPI starts to gain importance
    Źródło:
    Central European Journal of Economic Modelling and Econometrics; 2017, 2; 115-135
    2080-0886
    2080-119X
    Pojawia się w:
    Central European Journal of Economic Modelling and Econometrics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Modelling of Travel Behaviour of Students Using Artificial Intelligence
    Autorzy:
    Alex, Anu P.
    Manju, V. S.
    Isaac, Kuncheria P.
    Powiązania:
    https://bibliotekanauki.pl/articles/224051.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    travel demand models
    travel behaviour
    transportation planners
    travel management
    econometric model
    podróże
    zachowania podróżujących
    planowanie podróży
    zarządzanie podróżą
    model ekonometryczny
    Opis:
    Travel demand models are required by transportation planners to predict the travel behaviour of people with different socio-economic characteristics. Travel behaviour of students act as an essential component of travel demand modelling. This behaviour is reflected in the educational activity travel pattern, the timing, sequence and mode of travel of students. Roads in the vicinity of schools are adversely affected during the school opening and closing hours. It enhances the traffic congestion, emission and safety problems around schools. It is necessary to improve the safety of school going children by understanding the present travel behaviour and to develop efficient sustainable traffic management measures to reduce congestion in the vicinity of schools. It is possible only if the travel behaviour of educational activities are studied. This travel behaviour is complex in nature and lot of uncertainty exists. Selection of modelling technique is very important for modelling the complex travel behaviour of students. This leads to the importance of application of artificial intelligence (AI) techniques in this area. AI techniques are highly developed in twenty first century due to the advancements in computer, big data and theoretical understanding. It is proved in the literature that these techniques are suitable for modelling the human behaviour. However, it has not been used in behaviourally oriented activity based modelling. This study is aimed to develop a model system to predict the daily travel behaviour of students using artificial intelligence technique, ANN. These ANN models were then compared with the conventional econometric models developed. It was observed that artificial intelligence models provide better results than econometric models in predicting the activity-travel behaviour of students. These models were further applied to study the variation in activity-travel behaviour, if short term travel-demand management measures like promoting walking for educational activities are implemented. Thus the study established that artificial intelligence can replace the conventional econometric methods for modelling the activity-travel behaviour of students. It can also be used for analysing the impact of short term travel demand management measures.
    Źródło:
    Archives of Transport; 2019, 51, 3; 7-19
    0866-9546
    2300-8830
    Pojawia się w:
    Archives of Transport
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Use of Some Forecasting Methods and SWOT Analysis in the Selected Processes of Foundry
    Autorzy:
    Szymszal, J.
    Gajdzik, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/382538.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    computer aided
    casting production
    forecasting method
    SWOT analysis
    statistical method
    econometric method
    wspomaganie komputerowe
    produkcja odlewnicza
    metody prognozowania
    analiza SWOT
    metoda statystyczna
    metoda ekonometryczna
    Opis:
    Forecasting and analysis SWOT are helping tools in the business activity, because under conditions of dynamic changes in both closer and more distant surroundings, reliable, forward-looking information and trends analysis are playing a decisive role. At present, the ability to use available data in forecasting and other analyzes according with changes in business environment are the key managerial skills required, since both forecasting and SWOT analysis are a integral part of the management process, and the appropriate level of forecasting knowledge is increasingly appreciated. Examples of practical use of some forecasting methods in optimization of the procurement, production and distribution processes in foundries are given. The possibilities of using conventional quantitative forecasting methods based on econometric and adaptive models applying the creep trend and harmonic weights are presented. The econometric models were additionally supplemented with the presentation of error estimation methodology, quality assessment and statistical verification of the forecast. The possibility of using qualitative forecasts based on SWOT analysis was also mentioned.
    Źródło:
    Archives of Foundry Engineering; 2017, 17, 4; 224-230
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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