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    Wyświetlanie 1-7 z 7
    Tytuł:
    A theoretical approach to quantitative downside risk measurement methods
    Autorzy:
    Cibulskiené, Diana
    Brazauskas, Martynas
    Powiązania:
    https://bibliotekanauki.pl/articles/1367979.pdf
    Data publikacji:
    2016
    Wydawca:
    Wyższa Szkoła Bankowa we Wrocławiu
    Tematy:
    tail risk
    downside risk
    drawdown risk
    Opis:
    Evaluating the results of the investment portfolio it is important to take into account not only the expected profitability, but also the risk. Risk measurement is based on the historical data applying various methods. The methods, that take into account the downside volatility, measures risk most effectively. The importance of these methods is emphasized by the empirical research. There are three main downside risk types: downside or asymmetric risk, tail risk, drawdown risk. The paper describes and compares the different risk measurement methodologies and criteria. Market risk measurement methods must meet four basic risk measurement axioms: positive homogeneity, subadditivity, monotonicity, transitional invariance. These axioms represent only a part of evaluating methods for tail risk and drawdown risk. Having conducted empirical studies the scientists have shown that empirical research is becoming more and more popular involving the use of a downside risk measurement methods. This popularity can be explained by the fact that based on the research results the downside risk measurement methodologies help increase the efficiency of investment portfolio.
    Źródło:
    Central and Eastern European Journal of Management and Economics (CEEJME); 2016, 2; 105-123
    2353-9119
    Pojawia się w:
    Central and Eastern European Journal of Management and Economics (CEEJME)
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Risk Disclosure and Firm Value: Evidence from the United Kingdom
    Autorzy:
    Tache, Marta
    Powiązania:
    https://bibliotekanauki.pl/articles/1356520.pdf
    Data publikacji:
    2021-01-29
    Wydawca:
    Uniwersytet Warszawski. Wydział Nauk Ekonomicznych
    Tematy:
    market valuation
    risk disclosures
    IFRS 7
    downside risk
    Opis:
    The International Accounting Standard Board (IASB) aimed to increase the decision usefulness of firms’ risk disclosures with the 2007 introduction of the International Financial Reporting Standards (IFRS) 7. Specifically, listed firms were mandated to provide information to the market on both their (1) exposure and (2) risk management, which are associated with holding their financial instruments. This study investigates whether IFRS 7 financial instruments and their disclosures are associated with firm valuation. Using data on premiumlisted United Kingdom (UK) companies, for the period 2007–2019, I find evidence that firm value (proxied by Tobin's Q) is negatively associated with the quantity of IFRS 7 interest and credit risk disclosures. I further find that the market value decreases with the presence of quantitative information tabulated in the disclosures. The findings of this study have important implications for the IASB's standard-setting process.
    Źródło:
    Central European Economic Journal; 2021, 8, 55; 15 - 24
    2543-6821
    Pojawia się w:
    Central European Economic Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Market and Accounting Risk Factors of Asset Pricing in the Classical and Downside Approaches
    Autorzy:
    Rutkowska-Ziarko, Anna
    Markowski, Lesław
    Powiązania:
    https://bibliotekanauki.pl/articles/957583.pdf
    Data publikacji:
    2020
    Wydawca:
    Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
    Tematy:
    downside risk
    accounting beta
    CAPM
    ROA
    ROE
    Opis:
    Theoretical background: The variability of the company’s profitability is the result of the accompanying risk. To compare the profitability of many companies, relative profitability measures, which include profitability ratios, are more convenient. This article analyses market and accounting risk factors of CAPM. Risk was considered in variance and downside framework. Market betas, accounting betas were used in an extended version of the asset pricing model. Additionally, the influence of profitability ratios, such as ROA and ROE on the average rate of return on the capital market are considered.Purpose of the article: The main purpose of this study is to test the standard and extended CAPM relations between systematic risk measures and mean returns for single companies quoted on the Polish capital market and equally-weighted portfolios in two approaches: variance and downside risk.Research methods: The research based on individual securities and portfolios, compares the one-factor risk-return relationships with two-factor ones estimated using mean returns in cross-sectional regressions. The regressors were expressed in absolute terms and classical and downside beta coefficients. The sample includes companies differing in terms of size and across different industries.Main findings: Portfolios with higher classical or downside market betas generate higher mean returns. The negative risk premium for accounting betas for variance and downside risk was identified. It is not in accordance with our earlier study of the Polish construction sector, where a positive and significant risk premium for downside accounting betas was found. The highest explanatory power of rates on returns on the Polish capital market were found for average ROA and ROE. This confirms the results of the previous studies on the Polish capital market for food and construction sectors.
    Źródło:
    Annales Universitatis Mariae Curie-Skłodowska, sectio H – Oeconomia; 2020, 54, 2; 103-112
    0459-9586
    Pojawia się w:
    Annales Universitatis Mariae Curie-Skłodowska, sectio H – Oeconomia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Further evidence on the validity of CAPM: The Warsaw Stock Exchange application
    Autorzy:
    Markowski, Lesław
    Powiązania:
    https://bibliotekanauki.pl/articles/522238.pdf
    Data publikacji:
    2020
    Wydawca:
    Uniwersytet Ekonomiczny w Katowicach
    Tematy:
    Capital Asset Pricing Model (CAPM)
    Conditional relationship
    Co-skewness
    Downside risk
    Opis:
    Aim/purpose – The purpose of the research is to verify the Capital Asset Pricing Model (CAPM) in the Polish capital market based on a conventional and downside risk approach. Design/methodology/approach – The author in this study, using individual securities and portfolios, compares the unconditional risk-return relationships with the conditional risk, estimated in up and down market using realised returns in cross-sectional regressions. Except for a beta coefficient, the CAPM is tested with co-skewness as a higher order co-moment and downside betas as a risk measure in a downside approach. Findings – The unconditional regressions give evidence of existing risk premium associated with co-skewness and downside beta, and confirmed the validity of the downside CAPM. The author, based on conditional relations, found that risk-return relations depend on the state of the stock market. The average premium for systematic risk in term of beta coefficient is significantly positive in up market periods and significantly negative in down market periods. The use of conditional models did not explicitly confirm the suitability of co-skewness in asset pricing. Research implications/limitations – The main implications include the fact that the conventional beta coefficient is an appropriate risk measure when we consider using it separately for up and down market. A valuable extension of this research would be a benchmarking analysis to compare results for the Polish capital market against other emerging and developed markets. Originality/value/contribution – The author in this paper proposes an alternative approach to testing risk-return relationships based on the CAPM in comparison to commonly used tests founded upon joint estimations of these relationships in periods of both positive and negative market excess return. The noteworthy contribution of this study is an application of the downside beta coefficient and the co-skewness coefficient in crosssectional regressions.
    Źródło:
    Journal of Economics and Management; 2020, 39; 82-104
    1732-1948
    Pojawia się w:
    Journal of Economics and Management
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The development of downside accounting beta as a measure of risk
    Autorzy:
    Rutkowska-Ziarko, Anna
    Pyke, Christopher
    Powiązania:
    https://bibliotekanauki.pl/articles/943132.pdf
    Data publikacji:
    2017-12-30
    Wydawca:
    Uniwersytet Ekonomiczny w Poznaniu
    Tematy:
    downside accounting betas
    downside risk
    lower partial moments
    semi‑variance
    capital asset pricing
    food company sector
    Opis:
    This paper develops a new method for measuring market risk called downside accounting beta (DAB). To test the validity of DAB the method is applied to the financial data for 14 food companies listed on the Warsaw Stock Exchange during a 6-year period. DAB calculates how changes in the profitability of the whole sector affects the profitability of a given company. The paper concludes that when calculating DAB using Return on Assets (ROA) and Return on Equity (ROE) there is a positive correlation with market betas. The practical implication of this research is that investors, owners and managers can use DAB to calculate the systematic risk of companies not listed on stock markets and consequently to identify the levels of risk associated with companies within the sector.
    Źródło:
    Economics and Business Review; 2017, 3(17), 4; 55-65
    2392-1641
    Pojawia się w:
    Economics and Business Review
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A recursive procedure for selecting optimal portfolio according to the MAD model
    Autorzy:
    Michałowski, W.
    Ogryczak, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/205763.pdf
    Data publikacji:
    1999
    Wydawca:
    Polska Akademia Nauk. Instytut Badań Systemowych PAN
    Tematy:
    optymalizacja
    programowanie liniowe
    downside risk aversion
    investment
    linear programming
    portfolio optimization
    quadratic programming
    risk management
    Opis:
    The mathematical model of portfolio optimization is usually represented as a bicriteria optimization problem where a reasonable trade-off between expected rate of return and risk is sought. Im a classical Markowitz model the risk is measured by a variance, thus resulting in a quadratic programming model. As an alternative, the MAD model was proposed where risk is measured by (mean) absolute deviation instead of a variance. The MAD model is computationally attractive, since it is transformed into an easy to solve linear programming program. In this paper we poesent a recursive procedure which allows to identify optimal portfolio of the MAD model depending on investor's downside risk aversion.
    Źródło:
    Control and Cybernetics; 1999, 28, 4; 725-738
    0324-8569
    Pojawia się w:
    Control and Cybernetics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wycena aktywów kapitałowych w klasycznymi dolnostronnym podejściu do ryzyka
    Capital asset pricing in the classical and downside approaches to risk
    Autorzy:
    Markowski, Lesław
    Powiązania:
    https://bibliotekanauki.pl/articles/962764.pdf
    Data publikacji:
    2019
    Wydawca:
    Główny Urząd Statystyczny
    Tematy:
    relacje warunkowe
    Capital Asset Pricing Model
    ko-momenty
    wycena subindeksów sektorowych
    ryzyko dolnostronne
    conditional relations
    capital asset pricing model
    co-moments
    downside
    risk
    sub-sector indices pricing
    Opis:
    Celem artykułu jest weryfikacja modelu wyceny aktywów kapitałowych (Capital Asset Pricing Model, CAPM) na polskim rynku kapitałowym w klasycznym i dolnostronnym podejściu do ryzyka. Przedmiot badania stanowią szeregi czasowe stóp zwrotu 14 subindeksów sektorowych notowanych na Giełdzie Papierów Wartościowych w Warszawie w latach 2011–2018. Istotnym wkładem do badań nad ryzykiem inwestycji kapitałowych było użycie miar ryzyka zarówno w ujęciu klasycznym, jak i dolnostronnym. Przedstawione podejście badawcze w postaci regresji warunkowych względem kondycji rynku było odpowiedzią na niejednoznaczne wyniki zależności bezwarunkowych CAPM w dotychczasowych badaniach na rynkach kapitałowych. Wyniki analiz wskazują, że istotność wyceny ryzyka (premia za ryzyko) w głównej mierze zależy od znaku nadwyżki rynkowej, i świadczą o przewadze relacji warunkowych nad bezwarunkowymi. Analiza relacji bezwarunkowych wskazuje ponadto, że dolnostronne czynniki ryzyka, w przeciwieństwie do większości miar klasycznych, statystycznie istotnie wpływają na kształtowanie się stóp zwrotu badanych subindeksów. Na polskim rynku kapitałowym jedynie ko-kurtoza spośród ko-momentów podlega istotnej wycenie w okresach wzrostu.
    The purpose of the paper is to verify the functioning of the Capital Asset Pricing Model (CAPM) on the Polish capital market both in the classical and downside approaches to risk. The subject of the study are time series of returns of 14 sectoral sub-indices listed on the Warsaw Stock Exchange in 2011–2018. The use of risk measures in the conventional and downside approaches constitutes an important contribution to the studies on the risk of capital investments. The presented research method, which involves conditional regressions determined by the market situation, was adopted as a response to ambiguous results of unconditional CAPM relations in the previous research on capital markets. The results of the performed analyses indicate that the significance of risk assessment (risk premium) depends on the sign of the market excess return to the largest extent. They also evidence the supremacy of conditional relations over the unconditional ones. The analysis of unconditional relations has moreover demonstrated that downside risk factors, unlike the majority of classical measures, influence the process of shaping the returns of sub- -indices significantly. In the Polish capital market, it is only co-kurtosis, among other co- -moments, which is subject to significant pricing during periods of market growth.
    Źródło:
    Wiadomości Statystyczne. The Polish Statistician; 2019, 64, 11; 58-75
    0043-518X
    Pojawia się w:
    Wiadomości Statystyczne. The Polish Statistician
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-7 z 7

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