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    Tytuł:
    Monotonicity of the Selling Price of Information with Risk Aversion in Two Action Decision Problems
    Autorzy:
    Bakir, Niyazi Onur
    Powiązania:
    https://bibliotekanauki.pl/articles/2076547.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    decision analysis
    value of information
    selling price
    risk aversion
    buying price
    Opis:
    Various approaches have been introduced over the years to evaluate information in the expected utility framework. This paper analyzes the relationship between the degree of risk aversion and the selling price of information in a lottery setting with two actions. We show that the initial decision on the lottery as well as the attitude of the decision maker towards risk as a function of the initial wealth level are critical to characterizing this relationship. When the initial decision is to reject, a non-decreasingly risk averse decision maker asks for a higher selling price as he gets less risk averse. Conversely, when the initial decision is to accept, non-increasingly risk averse decision makers ask a higher selling price as they get more risk averse if information is collected on bounded lotteries. We also show that the assumption of the lower bound for lotteries can be relaxed for the quadratic utility family.
    Źródło:
    Central European Journal of Economic Modelling and Econometrics; 2015, 2; 71-90
    2080-0886
    2080-119X
    Pojawia się w:
    Central European Journal of Economic Modelling and Econometrics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Information pricing for portfolio optimization
    Autorzy:
    Banek, T.
    Kulikowski, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/970590.pdf
    Data publikacji:
    2003
    Wydawca:
    Polska Akademia Nauk. Instytut Badań Systemowych PAN
    Tematy:
    wartość informacji
    martyngał
    optymalizacja portfela inwestycyjnego
    value of information
    martingale
    portfolio optimization
    Opis:
    We consider the following problem: is there a rational or fair price for the reports made by analysts, experts, investor advisers concerning the rate of return (RR) of investments? We define the notion of the value of information included in the family of probability distributions of the RR. Next, we illustrate this notion for a linear-quadratic utility function.
    Źródło:
    Control and Cybernetics; 2003, 32, 4; 867-882
    0324-8569
    Pojawia się w:
    Control and Cybernetics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Incremental value of information for discrete-time partially observed stochastic systems
    Autorzy:
    Banek, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/969917.pdf
    Data publikacji:
    2010
    Wydawca:
    Polska Akademia Nauk. Instytut Badań Systemowych PAN
    Tematy:
    stochastic control
    filtering
    Hausdorff measures
    change of variables formula of Federer
    Lagrange multipliers
    value of information
    Opis:
    A discrete-time stochastic control problem for general (nonlinear in state, control, observation and noise) models is considered. The same noise can enter into the state and into the observation equations, and the state/observation does not need to be affine with respect to the noise. Under mild assumptions the joint distribution function of the state/observation processes is obtained and used for computing the Gateaux and Frechet derivatives of the cost function. Under partial observation the control actions are restricted by the measurability requirement and we compute the Lagrange multiplier associated with this "information constraint". The multiplier is called a "dual", or "shadow" price, and in the literature of the subject is interpreted as an incremental value of information . The present and the future are two factors appearing in the multiplier and we study how they are balanced as time goes on. An algorithm for computing extremal controls in the spirit of R. Rishel (1985) is also obtained.
    Źródło:
    Control and Cybernetics; 2010, 39, 3; 769-781
    0324-8569
    Pojawia się w:
    Control and Cybernetics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Creating value added for an enterprise by managing information security incidents
    Autorzy:
    Żywiołek, Justyna
    Taranto di, Alberto
    Powiązania:
    https://bibliotekanauki.pl/articles/88728.pdf
    Data publikacji:
    2019
    Wydawca:
    Stowarzyszenie Menedżerów Jakości i Produkcji
    Tematy:
    incident service
    management of information security incidents
    creation of value through information security
    Opis:
    This article presents the structure and analysis of information security incidents in a production company in 2015-2017. The purpose of the analysis is to identify incidental events and their frequencies. The analysis includes the occurrence of notifications, threatening events, employee errors and false alarms. The conducted research includes also the procedure for handling the incident in the enterprise. The enterprises very often avoid informing their contractors about the occurrence of incidents. Thanks to the analysis of incidents and a clearly defined action plan, the examined enterprise tested the incidents and actions taken with them as a method of creating the added value of the enterprise during the period under consideration. The conducted research has shown that contractors who are aware of preventive actions taken, as well as those affecting information security even after the occurrence of an incident, are more willing to provide trust and even support to the surveyed enterprise. The conducted analysis is a pilot study carried out in one large enterprise in the metallurgical industry. The aim of the conducted research is to show that the incident or negative event may have a positive impact on the company's image. The research was carried out with the use of a questionnaire and in-depth interview with representatives of enterprises that are co-operators of the examined company.
    Źródło:
    System Safety : Human - Technical Facility - Environment; 2019, 1, 1; 156-162
    2657-5450
    Pojawia się w:
    System Safety : Human - Technical Facility - Environment
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    An example to illustrate several aspects of optimization theory in Managerial Economics
    Autorzy:
    Lahiri, Somdeb
    Powiązania:
    https://bibliotekanauki.pl/articles/2014162.pdf
    Data publikacji:
    2021
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    managerial economics
    optimization
    linear programming
    decision making under risk
    value of information
    ekonomia menedżerska
    optymalizacja
    programowanie liniowe
    podejmowanie decyzji w warunkach ryzyka
    wartość informacji
    Opis:
    We provide a single example that illustrates all aspects of linear, integer and dynamic programming, including such concepts such as value of perfect and imperfect information. Such problems, though extremely plausible and realistic are hardly ever discussed in managerial economics.
    Źródło:
    Managerial Economics; 2021, 22, 1; 23-34
    1898-1143
    Pojawia się w:
    Managerial Economics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Landslide susceptibility assessment in Constantine region (NE Algeria) by means of statistical models
    Autorzy:
    Manchar, N.
    Benabbas, C.
    Hadji, R.
    Bouaicha, F.
    Grecu, F.
    Powiązania:
    https://bibliotekanauki.pl/articles/178256.pdf
    Data publikacji:
    2018
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    geographic information system
    probabilistic methods
    information value
    weight of evidence
    frequency ratio
    Opis:
    The purpose of the present study was to compare the prediction performances of three statistical methods, namely, information value (IV), weight of evidence (WoE) and frequency ratio (FR), for landslide susceptibility mapping (LSM) at the east of Constantine region. A detailed landslide inventory of the study area with a total of 81 landslide locations was compiled from aerial photographs, satellite images and field surveys. This landslide inventory was randomly split into a testing dataset (70%) for training the models, and the remaining (30%) was used for validation purpose. Nine landslide-related factors such as slope gradient, slope aspect, elevation, distance to streams, lithology, distance to lineaments, precipitation, Normalized Difference Vegetation Index (NDVI) and stream density were used in the landslide susceptibility analyses. The inventory was adopted to analyse the spatial relationship between these landslide factors and landslide occurrences. Based on IV, WoE and FR approaches, three landslide susceptibility zonation maps were categorized, namely, “very high, high, moderate, low, and very low”. The results were compared and validated by computing area under the receiver operating characteristic (ROC) curve (AUC). From the statistics, it is noted that prediction scores of the FR, IV and WoE models are relatively similar with 73.32%, 73.95% and 79.07%, respectively. However, the map, obtained using the WoE technique, was experienced to be more suitable for the study area. Based on the results, the produced LSM can serve as a reference for planning and decision-making regarding the general use of the land.
    Źródło:
    Studia Geotechnica et Mechanica; 2018, 40, 3; 208-219
    0137-6365
    2083-831X
    Pojawia się w:
    Studia Geotechnica et Mechanica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Information Asymmetry, Capital Structure and Equity Value of Firms Listed on the WSE
    Autorzy:
    Gralewska, Milena
    Białek-Jaworska, Anna
    Powiązania:
    https://bibliotekanauki.pl/articles/2162647.pdf
    Data publikacji:
    2022-07-31
    Wydawca:
    Uniwersytet Warszawski. Wydawnictwo Naukowe Wydziału Zarządzania
    Tematy:
    information asymmetry
    capital structure
    market value of the company
    WACC
    Opis:
    The paper investigates the impact of capital structure and information asymmetry on the value of companies listed on the Warsaw Stock Exchange. The study was conducted using the ordinary least squares (OLS) method on a sample of 273 companies in 2017 and the GMM dynamic paneldata approach with instrumental variables. Data retrieved from the Notoria, Bloomberg and Orbis databases were used. The results show that despite its impact on reducing the cost of capital, increasing debt does not lead to an increase in equity value. Therefore, the benefi ts of higher short-term leverage are limited and visible only for long-term debt. On the other hand, despite bigger information asymmetry, companies are valued higher, which means that asymmetrical information does not necessarily hurt valuation in the short term but in the long term. The results contribute to the literature on firms’ use of leverage under information asymmetry, showing higher trust in cash flow than profits in books.
    Źródło:
    Journal of Banking and Financial Economics; 2022, 1(17); 17-41
    2353-6845
    Pojawia się w:
    Journal of Banking and Financial Economics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The application of value stream mapping method for identifying basic drawbacks and reducing duration of information process in a company
    Autorzy:
    Żywiołek, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/111871.pdf
    Data publikacji:
    2016
    Wydawca:
    Stowarzyszenie Menedżerów Jakości i Produkcji
    Tematy:
    value stream mapping (VSM)
    information process mapping
    identification of drawbacks of information processes
    reduction of time of information processes
    mapowanie wartości strumienia
    proces mapowania informacji
    przepływ informacji
    Opis:
    The article presents the method of mapping the value stream and the stages of the creation of value stream mapping to identify the fundamental flaws of the process flow of information and shortening the duration of the process of the information in the audited company. The audited one large manufacturing company. Quantity of information which is reaching the company and process, is so large that it needs to implement methods to improve their flow. The research involved mapping the information when selected information flows.
    Źródło:
    Production Engineering Archives; 2016, 11, 2; 36-39
    2353-5156
    2353-7779
    Pojawia się w:
    Production Engineering Archives
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    How does the value of time influence road user costs during work zone closures? A case study in El Paso, Texas, using simulation - based modeling methods
    Autorzy:
    Shelton, Jeffrey
    Martin, Peter M.
    Powiązania:
    https://bibliotekanauki.pl/articles/2141120.pdf
    Data publikacji:
    2021
    Wydawca:
    Fundacja Centrum Badań Socjologicznych
    Tematy:
    value of time
    work zone
    road user cost
    dynamic traffic assignment
    advanced traveler information
    Opis:
    It is becoming standard practice for many departments of transportation (DOTs) to use incentive/disincentive clauses (also known as road user costs) with contractors to stay on or ahead of schedule. These road user costs are clauses that DOTs use to calculate a monetary amount to encourage contractors to complete work prior to milestone dates and/or limit the time specified on the contract. The monetary amounts are typically vehicle operating costs and vehicle delay costs encumbered by highway users resulting from construction, maintenance, or rehabilitation activity. In this paper, we propose an innovative way of calculating these costs using varied values of time based on trip purpose and departure time. In addition, we use advanced pre-trip and en route traveler information to determine the influence it has on route choice. Several scenarios are modeled using an advanced, simulation-based dynamic traffic assignment model. The goal of this paper is to identify the governing factors that contribute to road use costs by determining different approaches to derive the value one places on a trip. The approach to this study is twofold: first several research methods were used to derive the value of time. Second, the use of advanced traveler information is introduced to determine if it plays a critical role in route choice. The proposed methodology shows differences in road user cost calculations. Which approach would be more receptive to a contractor while proposing roadway construction? A case study of a roadway construction project in El Paso, Texas, is used to compare different approaches to calculate road user costs.
    Źródło:
    Journal of Sustainable Development of Transport and Logistics; 2021, 6, 1; 18-31
    2520-2979
    Pojawia się w:
    Journal of Sustainable Development of Transport and Logistics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Security information management systems
    Zarządzanie procesem bezpieczeństwa informacji
    Autorzy:
    Andrzejewski, Kamil
    Powiązania:
    https://bibliotekanauki.pl/articles/419863.pdf
    Data publikacji:
    2019
    Wydawca:
    Wydawnictwo Uniwersytetu Ekonomicznego we Wrocławiu
    Tematy:
    security management
    information
    company value
    assessment of the stock market
    new market value
    startup
    legal security
    IT security
    security context
    development security management
    ERP
    fraud.
    zarządzanie bezpieczeństwem
    informacja w organizacji
    ocena rynku akcji
    nowa wartość rynkowa
    bezpieczeństwo prawne
    bezpieczeństwo IT
    kontekst bezpieczeństwa
    zarządzanie bezpieczeństwem ERP
    oszustwa
    Opis:
    The article includes a literature outline of the scientific field of management sciences concerning issues of security management an organization. The article focuses on identifying literature in this area and describing the process in terms of the essence of management in the organization. The authors who were pioneers of the subject were indicated and the author also pointed to the important roles of the approach to information security management in the process of building and organizational development of the enterprise. At the end of the article, the author discusses opinions of other authors in the selection of the optimal strategy for managing security in an enterprise and shows how it financially a effects the company and its intangible market value.
    Artykuł zawiera zarys literatury naukowej z zakresu nauk o zarządzaniu dotyczący zagadnień zarządzania procesem bezpieczeństwa informacji w organizacji. Artykuł koncentruje się na identyfikacji literatury w tym obszarze i opisaniu tego procesu pod względem istoty zarządzania w organizacji. Wskazano autorów z całego świata, którzy są pionierami zarządzania procesem bezpieczeństwa jako unikalnego tematu rozwoju organizacji. Autor wskazał nowe trendy podejścia do zarządzania bezpieczeństwem informacji w procesie budowania i rozwoju modelu biznesu przedsiębiorstwa. Na końcu artykułu autor, opierając się na literaturze, dokonuje wyboru optymalnej strategii zarządzania bezpieczeństwem w przedsiębiorstwie. Autor pokazuje, w jaki sposób bezpieczeństwo zarządzania wpływa finansowo na organizację i jej wartość rynkową.
    Źródło:
    Nauki o Zarządzaniu; 2019, 24, 4; 1-9
    2080-6000
    Pojawia się w:
    Nauki o Zarządzaniu
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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