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  • 1
    Electronic Resource
    Electronic Resource
    The Power of Networks: Integration and Financial Cooperative Performance (2005)
    Oxford, UK; Malden, USA : Blackwell Publishing Ltd/Inc.
    Annals of public and cooperative economics 76 (2005), S. 0 
    Details
    ISSN: 1467-8292
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Economics
    Notes: Abstract/〉:  The purpose of this paper is to perform a cross-country survey of the level of integration of systems of financial cooperatives (FC) and its effect on measures of performance. We develop a classification scheme based on a theoretical framework that builds on published work using transaction cost economics (TCE) to explain integration of large numbers of financial cooperatives into networks. We identify three critical levels of increasing integration we call respectively atomized systems, consensual networks and strategic networks. Further, we test some of the propositions that result from the theoretical framework on an international sample of financial cooperative systems. Based on this analysis we can conclude that: (i) Integration is less (more) important in developing (more developed) countries and for very small (large) financial cooperatives as a determinant of efficiency. However, integration tends to reduce volatility of efficiency and performance regardless of development. (ii) Integration appears to help control measure of managers’ expense preferences that tend to affect performance of FC. (iii) Despite high costs of running hub-like organizations in highly integrated system, these systems economize in bounded rationality and operate at lower costs than less integrated systems.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1370-4788.2005.00281.x
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    A new branching strategy for time constrained routing problems with application to backhauling (1995)
    Springer
    Annals of operations research 61 (1995), S. 91-109 
    Details
    ISSN: 1572-9338
    Keywords: Routing ; scheduling ; time windows ; backhauling ; column generation ; branch-and-bound ; 90B05 ; 90C06 ; 90C08 ; 90C10
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics , Economics
    Notes: Abstract In this paper, we explore a new branching strategy for branch-and-bound approaches based on column generation for the vehicle routing problems with time windows. This strategy involves branching on resource variables (time or capacity) rather than on network flow variables. We also examine criteria for selecting network nodes for branching. To test the effectiveness of the branching strategy, we conduct computational experiments on time window constrained vehicle routing problems where backhauling is permitted only after all the shipments to clients have been made. The branching method proved very effective. In cases where time was the more binding constraint, time-based branching succeeded in decreasing the number of nodes explored by two thirds and the total computation time by more than half when compared to flow-based branching. The computational results also show that the overall algorithm was successful in optimally solving problems with up to 100 customers. It produced an average cost decrease of almost 7% when backhauling was permitted as compared to the cost involved when the client and the distributor routes were distinct.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02098283
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  • 3
    Book
    Book
    Computer-aided transit scheduling. Proc. of the 5th international workshop on computer-aided scheduling of public transport held in Montréal, Canada; 386 (1992)
    Berlin u.a. :Springer,
    Details
    Title: Computer-aided transit scheduling. Proc. of the 5th international workshop on computer-aided scheduling of public transport held in Montréal, Canada; 386
    Contributer: Desrochers, Martin , Rousseau, Jean-Marc
    Publisher: Berlin u.a. :Springer,
    Year of publication: 1992
    Pages: 432 S.
    Series Statement: Lecture notes in economics and mathematical systems 386
    Type of Medium: Book
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  • 4
    Book
    Book
    Computer-aided transit scheduling. Proceedings of the 5th international workshop on computer-aided scheduling of public transport, Montreal, Canada, August 19-23, 1990; 386 (1992)
    Berlin u.a. :Springer,
    Details
    Title: Computer-aided transit scheduling. Proceedings of the 5th international workshop on computer-aided scheduling of public transport, Montreal, Canada, August 19-23, 1990; 386
    Contributer: Desrochers, Martin , Rousseau, Jean-Marc
    Publisher: Berlin u.a. :Springer,
    Year of publication: 1992
    Pages: 432 S.
    Series Statement: Lecture notes in economics and mathematical systems 386
    Type of Medium: Book
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