Now showing items 6-25 of 833

    • 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 ...
    • 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 ...
    • 16 - Lost Sales 

      Lillestøl, Jostein (Others, 2007-10-17)
      Topic: Two-sample comparisons Context: Our firm started a certain business service in the early 1990’s. The concept was a success, and several other firms were established in the mid 1990’s offering similar services. ...
    • 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 ...
    • 18 - Union Card 

      Lillestøl, Jostein (Others, 2007-10-19)
      Topic: T-tests, analysis of variance, regression Context: The labour union UNI has doubled its membership during the last year, due to desertion from another union. Some new offers to the membership are under ...
    • 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 ...
    • 2 - Coding Errors 

      Lillestøl, Jostein (Others, 2007-10-03)
      Topic: Two-sample binomial counts Context: Many jobs involve entering codes into an information system. In order to avoid rework, confusion and trouble, the codes have to be memorized and remembered correctly. This ...
    • 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 ...
    • 3 - Sold Out 

      Lillestøl, Jostein (Others, 2007-10-04)
      Topic: Binomial counts in a time context Context: The food chain SO has four stores in the same region getting supplies from the same inventory. They consider introducing a new data based ordering system in all four ...
    • 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 ...
    • 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 ...
    • 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 ...
    • A Bellman approach to periodic optimization problems 

      Kvamsdal, Sturla F.; Maroto, José M.; Morán, Manuel; Sandal, Leif K. (Discussion paper;19/16, Working paper, 2016-11-30)
      We consider an infinite horizon optimization problem with arbitrary but finite periodicity in discrete time. The problem can be formulated as a fix-point problem for a contraction operator, and we provide a solution scheme ...
    • A bridge between continuous and discrete-time bioeconomic models: Seasonality in fisheries 

      Kvamsdal, Sturla F; Maroto, Jose M.; Moran, Manuel; Sandal, Leif Kristoffer (Journal article; Peer reviewed, 2017)
      We develop a discretization method to construct a discrete finite-time bioeconomic model, corresponding to bioeconomic models with continuous-time growth function, but allowing the analysis of seasonality in fisheries. The ...
    • A bridge between continuous and discrete-time bioeconomic models: Seasonality in fisheries 

      Kvamsdal, Sturla F.; Maroto, José M.; Morán, Manuel; Sandal, Leif K. (Discussion paper;20/16, Working paper, 2016-11-30)
      We develop a discretization method for continuous-time bioeconomic models. Based on this method, we develop a discrete-time bioeconomic model to analyze seasonality in fisheries. The discretization method consists of three ...
    • A carbon footprint proportional to expenditure : a case for Norway? 

      Narbel, Patrick A.; Isaksen, Elisabeth T. (Discussion paper;16/14, Working paper, 2014-04)
      Assuming that emissions originate from the consumption of goods and services, we study the relationship between consumption-based per capita carbon footprint and per capita expenditure for Norway, using 2007 data. A ...
    • A Donsker delta functional approach to optimal insider control and applications to finance 

      Draouil, Olfa; Øksendal, Bernt (Journal article; Peer reviewed, 2015)
      We study optimal insider control problems, i.e. optimal control problems of stochastic systems where the controller at any time t, in addition to knowledge about the history of the system up to this time, also has ...