Sökning: "Copula"

Visar resultat 1 - 5 av 73 uppsatser innehållade ordet Copula.

  1. 1. The Role of Uni- and Multivariate Bias Adjustment Methods for Future Hydrological Projections and Subsequent Decision-Making

    Master-uppsats, Uppsala universitet/Luft-, vatten- och landskapslära

    Författare :Anna Merle Liebenehm-Axmann; [2024]
    Nyckelord :Bias adjustment methods; future hydrological climate projections; statistical analysis; future streamflow analysis; biasjusteringsmetoder; framtida hydrologiska projektioner; statistisk analys; framtida vattenförings analys;

    Sammanfattning : Climate models are essential for generating future climate projections. However, due to simplifications, the models can produce systematic differences between output and reality, which is referred to as model bias. Bias adjustment methods aim to reduce this error, which is important for making future projections more reliable. LÄS MER

  3. 2. ON THE CVA OF CREDIT DEFAULT SWAPS: THE IMPLICATION OF DEPENDENCE USING A COPULA APPROACH

    Master-uppsats, Göteborgs universitet/Graduate School

    Författare :Sebastian Alm; Joel Fredriksson Pregmark; [2023-06-29]
    Nyckelord :Credit Value Adjustment; Counterparty Credit Risk; Wrong Way Risk; Credit Default Swap; Semi-Analytical Model; Interest Rate Swap;

    Sammanfattning : This study examines the nature and background to the Credit Value Adjustment(CVA), a concept that has gained focus due the it’s heightened importance for financial institutions subsequent to the 2008 financial crisis. CVA can be defined as the the price that should be added to the bilateral defaultable contract to adjust for the existing Counterparty Credit Risk (CCR) so that the contract will have the same value as a corresponding risk-free contract. LÄS MER

  4. 3. Empirical Analysis of Dependence Structure Between Assets: A Study of the Impact of Infation on Dependence Between Stock Portfolios and Gold

    Master-uppsats, Göteborgs universitet/Graduate School

    Författare :Tim Baldesten Pajunen; Filip Steussloff; [2023-06-29]
    Nyckelord :Infation;

    Sammanfattning : In this paper, we study the impact of inflation on the dependence and volatilities of gold and stock portfolios constructed by Fama and French. To model the dependence structure, we propose a copula probability model. LÄS MER

  5. 4. Exchange Rate and Equity Market Dependence under Shifts in Volatility Expectations

    Master-uppsats, Lunds universitet/Matematisk statistik

    Författare :Vilhelm Samuelsson; [2023]
    Nyckelord :Exchange rates; Equity markets; Volatility; ARMA-GARCH; Copula; Exchange rate determination; Safe-haven; Portfolio rebalancing; Return chasing; Mathematics and Statistics;

    Sammanfattning : Exchange rate movements have important implications for both policy makers and investors, as they can have large effects on the real economy and the return on investments. Lately, their relation to capital flows have attracted growing interest due to the failure of macroeconomic fundamentals to explain them. LÄS MER

  7. 5. Portfolio Risk Modelling in Venture Debt

    Master-uppsats, KTH/Matematisk statistik

    Författare :John Eriksson; Jacob Holmberg; [2023]
    Nyckelord :Startup Default Probability; Venture Debt; Gaussian Copula; Value-at-Risk; Expected Shortfall; Exposure at Default; Loss Given Default; Forecast; Linear Dynamic System; ARIMA Time Series; Monte Carlo Simulation; Linear Regression; Central Limit Theorem;

    Sammanfattning : This thesis project is an experimental study on how to approach quantitative portfolio credit risk modelling in Venture Debt portfolios. Facing a lack of applicable default data from ArK and publicly available sets, as well as seeking to capture companies that fail to service debt obligations before defaulting per se, we present an approach to risk modeling based on trends in revenue. LÄS MER