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Sökning: WFRF:(Carlsson Fredrik 1972 )

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  • Carlsson, Fredrik, 1968-, et al. (författare)
  • Conformity and the demand for environmental goods
  • 2008
  • Rapport (övrigt vetenskapligt)abstract
    • We test the hypothesis that people conform to certain social norms, i.e. that some individuals may be willing to pay a higher price premium for green products the more widespread green consumerism is in society. To investigate consumer preferences for environmentally friendly products, we conducted a choice experiment where the respondents were asked to choose among coffee products varying with respect to their share of ecological beans, share of fair trade beans, and price. Three treatments were used, differing only in the information given about the choices made by other consumers. More specifically, the respondents in the three subgroups were told that 10%, 50%, and 90% of all other consumers chose the alternative with 100% ecological beans. We find different responses to the treatments across individuals. In particular, we can only confirm our hypothesis of conformity for women, although men appear to have stronger preferences for ecological coffee than women.
  • Segeborn, Johan, 1972-, et al. (författare)
  • A Generalized method for weld Load balancing in multi station sheet metal assembly lines
  • 2011
  • Ingår i: Proceedings of the ASME 2011 International Mechanical Engineering Congress & Exposition IMECE2011 November 11-17, 2011, Denver, Colorado, USA.
  • Konferensbidrag (refereegranskat)abstract
    • Sheet metal assembly is investment intense. Therefore the equipment needs to be efficiently utilized. The balancing of welds has a significant influence on achievable production rate and equipment utilization. Robot line balancing is a complex problem, where each weld is to be assigned to a specific station and robot, such that line cycle time is minimized. Industrial robot line balancing has been manually conducted, based on experience and trial and error rather than mathematical methods. However, recently an automatic method for robot line balancing was proposed by the authors. To reduce robot coordination cycle time losses, this method requires identical reach ability of all line stations. This limits applicability considerably since in most industrial lines, reach ability differs over the stations to further line reach ability and flexibility. Therefore, in this work we propose a novel generalized simulation-based method for automatic robot line balancing that allows any robot positioning. It reduces the need for robot coordination significantly by spatially separating the robot weld work loads. This is furthermore achieved at a cost neglectable to line cycle time. The proposed method is furthermore successfully demonstrated on an automotive stud welding line. Moreover, algorithm CPU-times is a mere fraction of corresponding manual optimization times.
  • Abou-Ali, Hala, 1972-, et al. (författare)
  • Evaluating the welfare effects of improved water qualityusing the choice experiment method
  • 2004
  • Rapport (övrigt vetenskapligt)abstract
    • This paper analyzes the welfare effects of improved health status through increased water quality using a choice experiment. The survey was administered to a random sample of households in metropolitan Cairo, Egypt. We apply a random parameter logit model in the analysis and illustrate the richness of information that can be obtained from this type of model by estimating individual level willingness to pay (WTP). We find a significant WTP for improved health status, both for short-run and long-run health effects. However, the estimated WTP is fairly low compared with the costs of a program that would achieve these improvements.
  • Carlsson, Fredrik, 1968-, et al. (författare)
  • A Fair Share : Burden-Sharing Preferences in the United States and China
  • 2010
  • Rapport (övrigt vetenskapligt)abstract
    • Using a choice experiment, we investigated preferences for distributing the economic burden of decreasing CO2 emissions in the two largest CO2-emitting countries: the United States and China. We asked respondents about their preferences for four burden-sharing rules to reduce CO2 emissions according to their country’s 1) historical emissions, 2) income level, 3) equal right to emit per person, and 4) current emissions. We found that U.S. respondents preferred the rule based on current emissions, while the equal right to emit rule was clearly least preferred. The Chinese respondents, on the other hand, preferred the historical rule, while the current emissions rule was the least preferred. Respondents overall favored the rule that was least costly for their country. These marked differences may explain the difficulties countries face in agreeing how to share costs, presenting a tough hurdle to overcome in future negotiations. We also found that the strength of the preferences was much stronger in China, suggesting that how mitigation costs are shared across countries is more important there.
  • Carlsson, Fredrik, 1968-, et al. (författare)
  • A fair share: Burden-sharing preferences in the United States and China
  • 2013
  • Ingår i: Resource and Energy Economics. - 0928-7655. ; 35:1, s. 1-17
  • Tidskriftsartikel (refereegranskat)abstract
    • Using a sequential discrete choice experiment, we investigate preferences for distributing the economic burden of reducing CO2 emissions in the two largest CO2-emitting countries: the United States and China. We asked respondents about their preferences for four burden-sharing rules to reduce CO2 emissions according to their country's relative (1) historical emissions, (2) income level, (3) emissions per capita, and (4) current emissions. We found that respondents overall favored the rule that was least costly for their country. In addition, the willingness to pay was much higher in China, suggesting that how mitigation costs are shared across countries is more important for Chinese than for Americans. To some extent the willingness to pay varies with socioeconomic characteristics and attitudes. For example, university-educated respondents in the United States are willing to pay more for the rule that is the least costly for their own country, compared with those with a lower education level. At the same time, the ranking of the two most preferred rules are generally robust across all socioeconomic groups within each country.
  • Carlsson, Fredrik, 1968-, et al. (författare)
  • Airline choice, switching costs and frequent flyerprograms
  • 2004
  • Rapport (övrigt vetenskapligt)abstract
    • Switching costs are costs that customers face when switching from one firm to another. In markets such as the airline market where repeated purchases are common, switching costs may be substantial. In this paper we estimate the switching costs for domestic airline routes in Sweden between 1992 and 2002. In addition we also test for the determinants of switching costs. In particular we test to what extent factors such as frequent flyer programs and flag carriers have an effect on switching costs. The paper ends with a brief discussion on the welfare consequences of switching cots, where the connection between habit formation and switching costs is discussed.
  • Carlsson, Fredrik, 1968-, et al. (författare)
  • Discrimination in Scientific Review - A natural field experiment on blind versus non-blind review
  • 2009
  • Rapport (övrigt vetenskapligt)abstract
    • This paper analyzes the impacts of gender, as well as other author characteristics, on reviewers’ grading of papers submitted to an international conference in economics in Sweden in 2008. Correcting for other variables, including country and research field as well as researcher academic level, we focus on the difference in grades between blind and non-blind review treatments. We find little effect of non-blind reviewing and no significant evidence of gender or any other type of discrimination. Furthermore, we do not find any significant difference between the average grading by female and male reviewers.
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