Sökning: "ewma"

Visar resultat 1 - 5 av 39 uppsatser innehållade ordet ewma.

  1. 1. Demand Forecasting of Automobile Spare Parts after the End-of-Production - A review of demand forecasting models

    Master-uppsats, Göteborgs universitet/Graduate School

    Författare :Abid Ali; Arosha Ratnayake; [2023-07-03]
    Nyckelord :Demand forecasting; Spare parts; Automobile; End-of-Production EOP ; PRISMA; AHP; MCDM;

    Sammanfattning : Demand forecasting of spare parts plays a crucial role in automobile industry where it generally requires a significant attention in controlling inventory. It is possible to maintain an optimal stock level when there is a continues supply at the Original Equipment Manufacturers (OEMs). LÄS MER

  3. 2. Forecasting Volatility of Ether- An empirical evaluation of volatility models and their capacity to forecast one-day-ahead volatility of Ether

    Master-uppsats, Göteborgs universitet/Graduate School

    Författare :Johannes Marmdal; Adam Törnqvist; [2023-06-29]
    Nyckelord :Forecast; Volatility; Ether; GARCH; EWMA; SMA;

    Sammanfattning : This study evaluates the performance of volatility models in forecasting one-day-ahead volatility of the cryptocurrency Ether. The selected models are: GARCH, EGARCH, GJR-GARCH, SMA9, SMA20, and EWMA. We investigate both in-sample performance and out-of-sample performance. LÄS MER

  4. 3. Control charts for statistical quality control of Swedish stroke care using Riksstroke data

    Kandidat-uppsats, Umeå universitet/Statistik

    Författare :Edvin Morin; Martiina Novossad; [2022]
    Nyckelord :;

    Sammanfattning : The aim of this study was to implement statistical quality control to stroke care in Sweden by designing control charts for data from the Riksstroke registry to detect potential unnatural, or special cause variation in the years 2019-2020. Suitable control charts were designed for three quality indicators: the time elapsed from hospital admission to receiving reperfusion therapy (door-to-needle time), the proportion of patients directly admitted to stroke unit, and the fatality rate. LÄS MER

  5. 4. Risk measurement of cryptocurrencies using value at risk and expected shortfall

    Magister-uppsats, Lunds universitet/Nationalekonomiska institutionen

    Författare :Van Cao Thi Hong; [2022]
    Nyckelord :cryptocurrencies; value at risk; expected shortfall; risk measurement; parametric methods; non-parametric methods; EWMA; GARCH; EGARCH; GJRGARCH; backtesting; Business and Economics;

    Sammanfattning : Cryptocurrencies are highly volatile and risky assets, therefore, it is of vital importance to find an appropriate model for risk measurement. This thesis compares three parametric and three non-parametric estimation methods to estimate the value at risk and the expected shortfall of five cryptocurrencies, namely Bitcoin (BTC), Ethereum (ETH), Binance coin (BNB), Ripple coin (XRP), and Cardano (ADA). LÄS MER

  7. 5. Considering Tail Events in Hedge Fund Portfolio Optimization

    Master-uppsats, Linköpings universitet/Produktionsekonomi

    Författare :Josefin Bladh; Holm Greta; [2021]
    Nyckelord :Portfolio Optimization; Hedge Funds; Tail Events; Mean-CVaR;

    Sammanfattning : The Fourth Swedish National Pension Fund (AP4), as well as many other large investors, has noted deficiencies the Mean-Variance framework for portfolio management of asset with non-normal characteristics. The main problem apparent in the Mean-Variance framework, when investing in alternative assets such as hedge funds, is the lacking systematic control of the balance between the measurements of risk due normal variation and tail-risk. LÄS MER