Sökning: "skewed student t-distribution."

Visar resultat 1 - 5 av 7 uppsatser innehållade orden skewed student t-distribution..

  1. 1. Copula approach to fitting bivariate time series

    Master-uppsats, Lunds universitet/Matematisk statistik

    Författare :Jun Wang; [2023]
    Nyckelord :VaR; Copula; ARMA-GARCH; Extreme Value Theory; GPD; Hill estimator; Mathematics and Statistics;

    Sammanfattning : We apply the GARCH-copula method to estimate Value at Risk (VaR) for European and Stockholm stock indices. First, marginal distributions are estimated by the ARMA-GARCH model with normal, Student-t, and skewed t distributions. LÄS MER

  3. 2. Forecasting Exchange Rate Value-at-Risk and Expected Shortfall: A GARCH-EVT Approach

    Magister-uppsats, Lunds universitet/Nationalekonomiska institutionen

    Författare :Christoffer Titov; [2022]
    Nyckelord :GARCH; Extreme Value Theory; Value-at-Risk; Expected Shortfall; Exchange Rate Volatility; Business and Economics;

    Sammanfattning : This thesis aims to investigate the accuracy of Value-at-Risk and Expected Shortfall forecasts of various GARCH-type models based on five currency exchange rate pairs. The GARCH models are employed under different conditional distributional assumptions, and extended using the two-stage Extreme Value Theory (EVT) approach of McNeil and Frey (2000). LÄS MER

  4. 3. A study incorporating skewness in Expected Shortfall Estimation

    Magister-uppsats, Lunds universitet/Nationalekonomiska institutionen

    Författare :Sreeja Madhavi Prajeesh; [2021]
    Nyckelord :Value at Risk; Expected shortfall; normal distribution; student t-distribution; skewed student t-distribution.; Business and Economics;

    Sammanfattning : Expected Shortfall has become a prominent risk measure after the global financial crisis which hit the economy in 2007. This master thesis examines whether Expected Shortfall (ES) estimation gives better estimates when we incorporate skewness and the impact during turbulent versus tranquil period. LÄS MER

  5. 4. An Empirical Study: Expected Shortfall Estimation Methods for a Bank's Trading Book

    Magister-uppsats, Lunds universitet/Nationalekonomiska institutionen

    Författare :Laura Emina Ludolphy; Emilia Johansson; [2020]
    Nyckelord :Expected Shortfall; Trading Book; Student’s t-distribution; GARCH 1; 1 ; Volatility Weighted Historical Simulation; Business and Economics;

    Sammanfattning : This thesis investigates methods that estimate the Expected Shortfall correctly by passing the Acerbi-Szekely (2014) backtest in both stressed and calm periods. This backtest is added to in this thesis to test against both under- and overestimation of ES. LÄS MER

  7. 5. Expected Shortfall Estimation

    Magister-uppsats, Lunds universitet/Nationalekonomiska institutionen

    Författare :Kristina Boehm; [2019]
    Nyckelord :normal; skewed; t-distribution; Expected Shortfall; Value at Risk; Business and Economics;

    Sammanfattning : This thesis evaluates the performance of Expected Shortfall estimation with normal, student-t and skewed distributions. It is stylized fact that student-t distribution generally outperforms normal distribution. LÄS MER