Sökning: "Sune Karlsson"

Visar resultat 1 - 5 av 9 avhandlingar innehållade orden Sune Karlsson.

  1. 1. Sensitivity Analysis of Untestable Assumptions in Causal Inference

    Författare :Mathias Lundin; Xavier de Luna; Maria Karlsson; Sune Karlsson; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Observational studies; semiparametric regression; unconfoundedness; Causal inference; Statistics; Statistik; Statistics; statistik;

    Sammanfattning : This thesis contributes to the research field of causal inference, where the effect of a treatment on an outcome is of interest is concerned. Many such effects cannot be estimated through randomised experiments. For example, the effect of higher education on future income needs to be estimated using observational data. LÄS MER

  3. 2. Att äga rum : En undersökning av skogsägande och lokal utveckling i tre värmländska församlingar

    Författare :Svante Karlsson; Sune Berger; Gerhard Gustafsson; Tor Selstad; Karlstads universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Skogsägare; äganderätt; landsbygdsutveckling; lokal utveckling; Värmland; Human geography; Kulturgeografi; Kulturgeografi; Human Geography;

    Sammanfattning : Karlsson, S. 2007: Att äga rum. En undersökning av skogsägande och lokal utveckling i tre värmländska församlingar. (Ruling Spaces. LÄS MER

  4. 3. Plats för kulturarv och turism : Grythyttan - en fallstudie av upplevelser, värderingar och intressen

    Författare :Lotta Braunerhielm; Sune Berger; Sven-Erik Karlsson; Magnus Bohlin; Karlstads universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; plats; kulturarv; turism; identitet; upplevelser; måltid; destination; Grythyttan; Bergslagen; Human geography; Kulturgeografi; Kulturgeografi; Human Geography;

    Sammanfattning : This thesis focuses on the tension between cultural heritage and tourism development. A case study was carried out in Grythyttan, a cultural-historical place, located in the municipality of Hällefors in Bergslagen. The central aim of the study is to explore, understand and interpret the tensions between cultural heritage and tourism. LÄS MER

  5. 4. Common features in vector nonlinear time series models

    Författare :Dao Li; Sune Karlsson; Kenneth Carling; Thomas Holgersson; Örebro universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; nonliearity; time series; econometrics; smooth transition; common features; cointegration; forecasting; residual-based; ppp; Statistics; Statistik; Complex Systems – Microdata Analysis;

    Sammanfattning : This thesis consists of four manuscripts in the area of nonlinear time series econometrics on topics of testing, modeling and forecasting nonlinear common features. The aim of this thesis is to develop new econometric contributions for hypothesis testing and forecasting in thesearea.Both stationary and nonstationary time series are concerned. LÄS MER

  7. 5. Calibration Adjustment for Nonresponse in Sample Surveys

    Författare :Bernardo João Rota; Thomas Laitila; Sune Karlsson; Risto Lehtonen; Örebro universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Auxiliary variables; Calibration; Nonresponse; principal com-ponents; regression estimator; response probability; survey sampling; two-step estimator; variance estimator; weighting; Statistics; Statistik;

    Sammanfattning : In this thesis, we discuss calibration estimation in the presence of nonresponse with a focus on the linear calibration estimator and the propensity calibration estimator, along with the use of different levels of auxiliary information, that is, sample and population levels. This is a fourpapers- based thesis, two of which discuss estimation in two steps. LÄS MER