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Träfflista för sökning "WFRF:(Holm Einar 1942 ) "

Sökning: WFRF:(Holm Einar 1942 )

  • Resultat 1-10 av 29
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1.
  • Adjei, Evans, et al. (författare)
  • Familial relationships and firm performance : the impact of entrepreneurial family relationships
  • 2019
  • Ingår i: Entrepreneurship and Regional Development. - : Taylor & Francis Group. - 0898-5626 .- 1464-5114. ; 31:5-6, s. 357-377
  • Tidskriftsartikel (refereegranskat)abstract
    • While the family may serve as a resource for entrepreneurs, it has been studied separately in different disciplines. In this paper, we combine the arguments on familial relationships (family firm literature) and skill variety (regional learning literature) to analyse how different forms of entrepreneurial family relationships (co-occurrences) facilitate firm performance, and how familial relationships moderate the effects of skill variety on firm performance. Using longitudinal data (2002-2012) on a sample of privately owned firms with up to 50 employees with matched information on all employees, our results show that entrepreneur children relationship is the dominant dyad familial relationship in family firms. The fixed effects estimates demonstrate that entrepreneurial family relationships do affect firm performance but that this is dependent on the type of familial relationship. Children and spouses show a positive relationship with firm performance while siblings of the entrepreneur show no significant relationship with performance. The estimates further indicate that familial relationships involving spouses abate the negative effects of having too similar or too different types of skills. The paper thus contributes to new knowledge regarding not only whether family relationships matter for performance, but also in what way they matter.
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  • Ekberg, Joakim, et al. (författare)
  • Impact of precautionary behaviors during outbreaks of pandemic influenza : modeling of regional differences
  • 2009
  • Ingår i: AMIA Annual Symposium Proceedings. - Rockville Pike, Bethesda MD, 20894 USA : American Medical Informatics Association. - 1942-597X. ; 2009, s. 163-167
  • Tidskriftsartikel (refereegranskat)abstract
    • Using time geographic theory for representation of population mixing, we set out to analyze the relative impact from precautionary behaviors on outbreaks of pandemic influenza in Europe and Asia. We extended an existing simulator environment with behavioral parameters from a population survey to model different behaviors. We found that precautionary behaviors even among a minority of the population can have a decisive effect on the probability of the outbreak to propagate. The results also display that assumptions strongly influences the outcome. Depending on the interpretation of how many "children" are kept from "school", R(0) changes from a range where outbreak progression is possible to a range where it is improbable in both European (R(0)=1.77/1.23) and Asian (R(0)=1.70/1.05) conditions. We conclude that unprompted distancing can have a decisive effect on pandemic propagation. An important response strategy can be to promote voluntary precautionary behavior shown to reduce disease transmission.
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4.
  • Eriksson, Henrik, et al. (författare)
  • A Flexible Simulation Architecture for Pandemic Influenza Simulation
  • 2015
  • Ingår i: AMIA Annual Symposium Proceedings. - : American Medical Informatics Association. - 1942-597X. ; 2015, s. 533-542
  • Tidskriftsartikel (refereegranskat)abstract
    • Simulation is an important resource for studying the dynamics of pandemic influenza and predicting the potential impact of interventions. However, there are several challenges for the design of such simulator architectures. Specifically, it is difficult to develop simulators that combine flexibility with run-time performance. This tradeoff is problematic in the pandemic-response setting because it makes it challenging to extend and adapt simulators for ongoing situations where rapid results are indispensable. Simulation architectures based on aspect-oriented programming can model specific concerns of the simulator and can allow developers to rapidly extend the simulator in new ways without sacrificing run-time performance. It is possible to use such aspects in conjunction with separate simulation models, which define community, disease, and intervention properties. The implication of this research for pandemic response is that aspects can add a novel layer of flexibility to simulation environments, which enables modelers to extend the simulator run-time component to new requirements that go beyond the original modeling framework.
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  • Haugen, Katarina, et al. (författare)
  • Changes in accessibility 1995-2005
  • 2009
  • Ingår i: Paper presented at the NECTAR Cluster on Accessibility, Cagliari, Italy. - Cagliari.
  • Konferensbidrag (refereegranskat)
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7.
  • Haugen, Katarina, 1980-, et al. (författare)
  • Proximity, accessibility and choice : a matter of taste or condition?
  • 2012
  • Ingår i: Papers in regional science (Print). - : Wiley. - 1056-8190 .- 1435-5957. ; 91:1, s. 65-84
  • Tidskriftsartikel (refereegranskat)abstract
    • Drawing on a combination of register data and travel survey data, this research explores changes in the accessibility to different amenities for the Swedish population between 1995 and 2005, as well as the reasons behind the changes: redistribution of either amenities or the population. Overall, proximity has increased concerning most of the amenities during the period. However, despite decreasing 'potential' distances, actual travel distances are growing longer due to, for example, an increasing selectivity in preferences. An analysis of the accessibility development for service amenities shows that restructuring within the service sector is the main cause of the changes, and to a lesser extent population redistribution.
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10.
  • Holm, Einar, 1942- (författare)
  • Att lokalisera utbildning, sysselsättning och boende
  • 1984
  • Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
    • In this study methods are developed for locating places of education, employment opportunities and housing.The first model allocates places for upper secondary (Am. High School) education in space with the aid of a location-allocation model using capacity constraints and distance-dependent demand. The solution is obtained by an heuristic node-swapping method. For each line of study it sets down the number of locations that could offer such courses, their physical location, their capacities and their geographical catchment areas. The educational resources are allocated according to a criteria that minimizes a weighted sum of geographical distances between the schools and their potential pupils, their applicants and the labour market. In connection with applications of the model, analyses suggest that the location and dimensioning of upper secondary education are primarily steered by the local pupil demand, secondly by the desire for an even regional allocation and thirdly by the demand from the local labour market.In the second model, government employment programmes are allocated among sectors of the economy and sub-districts within a municipality over time. The aim is to offer a sufficient number of employment opportunities for the lowest possible level of public expenditure - irrespective of which support sectors happened to have resources at their disposal at the time of investigation. Given frequencies of persons employed are sought for various groups of people, e.g. men, women, or peripheral residents in the municipality. One general result is that the existing allocation of support resources on sectors only yields less than half as many employment opportunities as could be provided with the same resource input allocated in a different way. Even with a more efficent resource allocation, the amount of support needs to be at least doubled in order to produce national average levels of employment over the long term, within the studied municipality.The third model represents a local housing market with a varying housing stock and population. The changes of accommodation are described for the individual households, giving information on preferences and restrictions. A large proportion of home moves are due to changes in the household composition, changes which are explained internally within the model. The model shows how the new production of housing should be distributed by types of dwelling in different geographically delimited areas over time. The individual's welfare losses during the wait for a new place to live and the costs of empty accommodation are weighed against each other in the allocation algorithm of the model. The model is qualitatively different from traditional models using aggregated data. However models with data on individuals, individual decision processes, and interplay between different actors can probably be developed into usable bases for decision.
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