Sökning: "hazard rate"

Visar resultat 16 - 20 av 152 avhandlingar innehållade orden hazard rate.

  1. 16. Studies on unemployment duration and on the gender wage gap

    Författare :Anna Thoursie; Tor Eriksson; Stockholms universitet; []

    Sammanfattning : Effects of Renewable Benefit Periods and Labour Market Programmes on the Exit Rate from UnemploymentThe main question addressed in this paper concerns the incentive effects of time-restricted unemployment benefits, as manifest in a rising exit rate from unemployment to employment when the moment of benefit exhaustion approaches: are these incentive effects lost when participation in labour market programmes is at hand as a way of renewing benefit eligibility? This renewal possibility is available as part of the Swedish unemployment insurance system. A piecewise-constant, proportional competing-risks hazard model is estimated using Swedish administrative data generated during the period 1994-1997. LÄS MER

  2. 17. On-farm cow mortality in Swedish dairy herds

    Författare :Karin Alvåsen; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []

    Sammanfattning : A high rate of on-farm cow mortality (i.e. unassisted death and euthanasia) is both a financial concern and an important animal welfare issue. The overall aim of this thesis was to evaluate the development of mortality in Swedish dairy herds and to identify characteristics associated with on-farm mortality at cow and herd levels. LÄS MER

  3. 18. Five essays on models and methods for the analysis of survival data with single and multiple causes of failure : With applications in family demography

    Författare :Gebrenegus Ghilagaber; Uppsala universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; Informatics; computer and systems science; Informatik; data- och systemvetenskap; Informatics; computer and systems science; Informatik; data- och systemvetenskap; statistik; Statistics;

    Sammanfattning : The dissertation consists of five self-contained essays dealing with analytical investigations, simulation studies, and demographic applications of statistical models and associated methods for the analysis of the so-called survival data.Our analytical results in the first paper indicate that models for grouped survival data which, depending on the application, are labeled different names, practically, make use of the same method in the process of parameter estimation and inference. LÄS MER

  4. 19. Pension reforms and retirement behaviour

    Författare :Erik Glans; Henry Ohlsson; Jan Pettersson; Erik Hernaes; Uppsala universitet; []
    Nyckelord :SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Retirement; pension reform; Economics; Nationalekonomi; nationalekonomi; Economics;

    Sammanfattning : This thesis consists of three self-contained essays. Essay 1. Knowledge about how elderly workers react to changes in pension benefits is important in guiding the design of social security systems. This essay contributes to this knowledge by examining the effect of changes in replacement rates on part-time retirement behaviour in Sweden. LÄS MER

  5. 20. Seismicity Analyses Using Dense Network Data : Catalogue Statistics and Possible Foreshocks Investigated Using Empirical and Synthetic Data

    Författare :Angeliki Adamaki; Roland Roberts; Beata Orlecka-Sikora; Uppsala universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Statistical Seismology; Earthquake Catalogue Statistics; Seismicity Patterns; Precursors; Foreshocks; Στατιστική Σεισμολογία; Κατάλογοι Σεισμών; Μοτίβα Σεισμικότητας; Πρόδρομα Φαινόμενα; Προσεισμοί; Geofysik med inriktning mot seismologi; Geophysics with specialization in Seismology;

    Sammanfattning : Precursors related to seismicity patterns are probably the most promising phenomena for short-term earthquake forecasting, although it remains unclear if such forecasting is possible. Foreshock activity has often been recorded but its possible use as indicator of coming larger events is still debated due to the limited number of unambiguously observed foreshocks. LÄS MER