Recent Submissions

  • Sample statistics as convincing evidence: A tax fraud case 

    Lillestøl, Jostein (Discussion paper;12/18, Working paper, 2018-09-25)
    This report deals with the analysis of data used by tax officers to support their claim of tax fraud at a pizzeria. The possibilities of embezzlement under study are overreporting of take-away sales and underreporting of ...
  • Cooperative game-theoretic features of cost sharing in location-routing 

    Osicka, Ondrej; Guajardo, Mario; van Oost, Thibault (Discussion paper;11/18, Working paper, 2018-09-24)
    This article studies several variants of the location-routing problem using a cooperative game-theoretic framework. The authors derive characteristics in terms of subadditivity, convexity, and non-emptiness of the core. ...
  • Can an Emission Trading Scheme really reduce CO2 emissions in the short term? Evidence from a maritime fleet composition and deployment model 

    Gu, Yewen; Wallace, Stein W.; Wang, Xin (Discussion paper;10/18, Working paper, 2018-06-27)
    Global warming has become one of the most popular topics on this planet in the past decades, since it is the challenge that needs the efforts from the whole mankind. Maritime transportation, which carries more than 90% of ...
  • Incitements for transportation collaboration by cost allocation 

    Dahlberg, Joen; Engevall, Stefan; Göthe-Lundgren, Maud; Jørnsten, Kurt; Rönnqvist, Mikael (Journal article; Peer reviewed, 2018)
    In this paper, we focus on how cost allocation can be used as a means to create incentives for collaboration among companies, with the aim of reducing the total transportation cost. The collaboration is assumed to be ...
  • Preface 

    Lillestøl, Jostein (Others, 2007-10-01)
    This is a case collection in data analysis containing cases mostly relevant for business studies. The first part of ten cases are mini-cases, that is, with a limited issue and a small dataset. The second part contains wider ...
  • The economic impact of multiple sclerosis to the patients and their families in Norway 

    Svendsen, Bjørn; Grytten, Nina; Bø, Lars; Aarseth, Hallvard Gilje; Smedal, Tori; Myhr, Kjell-Morten (Journal article; Peer reviewed, 2018)
    Background Multiple sclerosis (MS) imposes high economic costs on society, but the patients and their families have to bear some of these costs. Objective We aimed to estimate the magnitude of these economic costs in ...
  • 9 - Breakfast Cereal 

    Lillestøl, Jostein (Working paper, 2007-10-10)
    Topic: Cluster analysis and alternatives Context: The following data (units omitted) on the content of 23 different brands of breakfast cereal were read from the packages found in two food stores in Bergen in the ...
  • 4 - Accident Risks 

    Lillestøl, Jostein (Others, 2007-10-05)
    Topic: Frequency counts, risk analysis Context: Many companies and organizations observe and keep records of work accidents or some other unwanted event over time, and report the numbers monthly, quarterly or yearly. ...
  • 5 - Minced Meat 

    Lillestøl, Jostein (Others, 2007-10-06)
    Topic: Statistical Process Control Context: A slaughterhouse has initiated a program to implement quality management ideas at their production facility. Among others, this means an effort to keep all their processes ...
  • 6 - Fish Farming 

    Lillestøl, Jostein (Others, 2007-10-07)
    Topic: Distribution, mean and variation over time Context: The business of fish farming offers many challenging problems where you have to combine economics and bioscience. This also offers lots of opportunities for ...
  • 17 - Tax Audit 

    Lillestøl, Jostein (Others, 2007-10-18)
    Topic: Comparisons, regression and outliers Context: The establishment ”Nels” has live music every Friday and Saturday. The guests have to pay a cover charge of 50 NOK kr, and if the cloakroom is used, a wardrobe fee ...
  • 15 - City Parking 

    Lillestøl, Jostein (Others, 2007-10-16)
    Topic: Estimation with confidence, t-tests Context: The city parking company of Bergen, Norway had in the period 1983-1988 two shifts for emptying the parking meters and ticket machines. The two shifts were alternating ...
  • 14 - Operating Expenses 

    Lillestøl, Jostein (Others, 2007-10-15)
    Topic: Multidimensional categorical and numerical variables - association and explanation A civil service operates throughout the state and has a number of cars. Purchasing and maintenance are decentralized to 6 ...
  • 19 - Hospital Expenses 

    Lillestøl, Jostein (Others, 2007-10-20)
    Topic: Analysis of variance (ANOVA) Context: A county wants to look into a specific type of costs at three of its regional hospitals. The last three years the average cost per patient day of stay, adjusted for ...
  • 10 - Hotel Tourism 

    Lillestøl, Jostein (Working paper, 2007-10-11)
    Topic: Factor analysis and Discriminant analysis Context: This case is based on answers of questionnaires given to tourists at hotels in three different regions of Norway, here named Valleyland, Fjordland and ...
  • 1 - Drum Costs 

    Lillestøl, Jostein (Others, 2007-10-02)
    Topic: Linear fit Context: A developer of oil fields makes extensive use of drums of various sizes and specifications. For project cost estimation they need rough estimates of their costs. As an alternative to looking ...
  • 20 - Customer Satisfaction 

    Lillestøl, Jostein (Working paper, 2007-10-21)
    Topics: Possible methods of analysis are: Cross tabulation - chisquare tests Analysis of variance Regression analysis Factor analysis Discriminant analysis Cluster analysis Context: For producers of ...
  • 7 - Car Insurance 

    Lillestøl, Jostein (Others, 2007-10-08)
    Topic: Categorical variables, covariation and explanation Context: The insurance company CI specializes in car insurance, and wants to get some preliminary views from the market about added features to the comprehensive ...
  • 8 - Vodka Sales 

    Lillestøl, Jostein (Others, 2007-10-09)
    Topic: Time series analysis and prediction Context: A wholesale dealer of liquor has on record the sales each month of a certain brand of vodka for the period of July 2001 - June 2004. The data is available in the ...
  • 13 - Response Times 

    Lillestøl, Jostein (Others, 2007-10-14)
    Topics: One-sample and two-sample estimation and testing, analysis of variance and regression Context: The users of a data base system, e.g. in a bank, will emphasize short response times when searching the data ...

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