The KLU faculty, post-docs, and PhD candidates regularly publish the results of their research in scientific journals. You will find a complete overview of all KLU publications below (e.g. articles in peer-reviewed journals, professional journals, books, working papers, and conference proceedings). Search for relevant terms and keywords, or filter the list by name, year of publication or type of publication. The references include DOIs and abstracts where available, and you can download them to your own reference database or platform. We regularly update the database with new publications.

Journal Articles (Peer-Reviewed)

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Abstract: Focuses on use of operations research (OR) in internet-enabled supply chains of business enterprises. Benefits of using OR in planning, customer-relationship management, product design, and marketing; Impact of Internet growth on opportunities for OR; Improvement of supply-chain management of firms through OR.

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Copy reference link   DOI: 10.1023/A:1018346332447

Abstract: Using 1992 data of 1490 banks covering about 40% of German banking, we specify amulti-product translog cost function and follow the “thick frontier”-approach to control for cost inefficiency when evaluating the technology of banking. Scale economies are found to exist up to a size of about 5 billion DM of total assets, with diseconomies being caused by non-operating costs. There is hardly any evidence of economies of scope. Compared to cost inefficiency external factors play a surprisingly strong role in explaining cost differences between high-cost and low-cost banks. Smaller banks turn out to be more responsive to input prices.

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Copy reference link   DOI: 10.1016/S0167-8116(97)00038-4

Abstract: Marketing controllers traditionally analyze the profit contribution variance between actual and plan by decomposing it into a quantity and a price variance. This, however, enables them only to identify areas where problems exist rather than to diagnose their causes. In order to get more insights, this paper proposes making the planning assumptions for achieving a certain profit contribution explicit beforehand by specifying appropriate response functions. This information can be used after the fact to calculate the amount of profit contribution variance associated with different sources. In particular, the paper offers a novel decomposition principle of total variance into partial variances associated with possible sources such as incorrect market response assumptions (planning variance), deviations of actual marketing actions from planned ones (execution variance) and misanticipation of competitive reactions (reaction variance). Each of these variances can be decomposed further into the separate effects of single marketing instruments. By distinguishing between a response function for market share and one for market size, controllers can also estimate for which part of the variance the product manager may be responsible.

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Copy reference link   DOI: 10.2307/20714861

Abstract: This article applies a modern empirical test of conduct to assess competitive conditions in the German banking sector. The elasticity of total revenues with respect to changes in input prices is calculated, using the intermediation approach as model of the banking firm. The functional form of the revenue equation is specified as a Translog function. The empirical basis consists of a panel of 1432 German universal banks with an observation period of at least four years for each of them. To account for potential consequences of the distinct regulatory environment and average bank size, the estimations are run separately for the three subgroups „cooperative banks”, „savings banks” and „credit banks”. The empirical results are consistent with the behavior of monopolistic competition, rejecting significantly the hypotheses of both monopoly and perfect competition. Differences between the subgroups turned out to be small, rejecting a causality from market share on market behavior.

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