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Auflistung nach Autor:in "Lammers, Markus"

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  • Zeitschriftenartikel
    Integrated Decision Model for Credit Product Outsourcing
    (Wirtschaftsinformatik: Vol. 47, No. 2, 2005) Holzhäuser, Markus; Lammers, Markus; Schwarze, Felix
    Integrated Decision Model for Credit Product Outsourcing The European banking landscape seems to be evolving from a highly vertically integrated banking landscape into a value network of specialized banks. This can also be seen in the credit product industry where consumer credit specialists take over portfolios from other banks. While decision models for IS, operations and production outsourcing are discussed in the literature, we lack a model for credit product outsourcing which reflects the change of risk capital as discussed in the literature about credit sales. In combining these two literature strands, we develop a model to determine whether it is beneficial to internally produce or externally source a credit product.
  • Zeitschriftenartikel
    Make, Buy or Share
    (Wirtschaftsinformatik: Vol. 46, No. 3, 2004) Lammers, Markus
    In this paper a sourcing decision framework is developed combining the resource based view, transaction cost economics and production economies. The combined theories are used to provide a sequential application of the main arguments of resource based view, transaction cost theory and production cost theory to decide on making, buying or sharing an activity. A further key contribution of this paper is the introduction of share as an alternative to make or buy. Share means the bundling of resources between competitors and reflects the importance of cooperation between competitors as a way of improving the efficiency of production. The developed framework regards IT as a portfolio of activities and can be used to evaluate which IT activities should be produced internally and whether cost savings expected from IT outsourcing may be realizable.