Sökning: "Risk estimates"

Visar resultat 16 - 20 av 404 avhandlingar innehållade orden Risk estimates.

  1. 16. Fresh Perspectives on the Assessment of Sewage Sludge Management

    Författare :Robin Harder; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; life cycle assessment; biosolids; land application; sewage sludge; pathogen risk; risk assessment; life cycle impact assessment; human toxicity; wastewater; chemical risks;

    Sammanfattning : Sewage sludge management and its role in closing nutrient cycles have received considerable attention in recent years. This thesis quantified phosphorus flows in Gothenburg, Sweden, under current and possible future waste management practices, and aimed to improve the assessment of wastewater and sludge management from an environmental and human health perspective through blending risk assessment (RA) and life cycle assessment (LCA). LÄS MER

  3. 17. Applications of Bayesian Econometrics to Financial Economics

    Författare :Christoffer Bengtsson; Nationalekonomiska institutionen; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; economic systems; economic theory; econometrics; Economics; systemic risk; stochastic volatility; jump-diffusion; shrinkage; covariance matrix estimation; estimation risk; portfolio selection; mean-variance optimization; Markov chain Monte Carlo; Bayesian econometrics; ekonomisk politik; ekonomiska system; ekonomisk teori; ekonometri; Nationalekonomi; economic policy;

    Sammanfattning : This PhD thesis consists of four separate papers. What these papers have in common is that Bayesian Econometrics, in combination with Markov chain Monte Carlo (MCMC) methods, is applied to study various problems in financial economics. LÄS MER

  4. 18. Chemical exposure in the work place : mental models of workers and experts

    Författare :Anita Pettersson-Strömbäck; Bengt Järvholm; Steven Nordin; Bo Strangert; Marianne Törner; Umeå universitet; []
    Nyckelord :self-assessment of exposure; predictions; expert judgment; risk; interpretation; time series analysis; MAPE; benzene; monoterpenes; styrene; Occupational and Environmental Medicine; arbets- och miljömedicin;

    Sammanfattning : Many workers are daily exposed to chemical risks in their work place that has to be assessed and controlled. Due to exposure variability, repeated and random measurements should be conducted for valid estimates of the average exposure. LÄS MER

  5. 19. Financial Volatility and Time-Varying Risk Premia

    Författare :Peter Hördahl; Nationalekonomiska institutionen; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Monte Carlo methods; Term structure of interest rates; Asymmetric variance; Time-varying risk premia; Volatility forecasting; CAPM; Conditional asset pricing models; Stochastic volatility; Volatility modeling; GARCH; Bond option pricing; Financial science; Finansiering;

    Sammanfattning : This thesis consists of four empirical essays, all dealing with return volatility of financial assets and/or time-varying risk premia. In the first essay, Changing Risk Premia: Evidence from a Small Open Economy, the relation between risk and return is investigated for Swedish stocks. LÄS MER

  7. 20. Estimation of risk in the field of osteoporosis

    Författare :Helena Johansson; Göteborgs universitet; []
    Nyckelord :osteoporosis; fracture; bone mineral density; ; clinical risk factors; FRAX; Poisson model; 10 year probability; mortality; vitamin D; adiponectin;

    Sammanfattning : Introduction: Osteoporosis has been recognised as an established and well-defined disease that affects more than 75 million people in the United States, Europe and Japan. Osteoporosis has been operationally defined by the WHO on the basis of bone mineral density (BMD) assessment. LÄS MER