In this paper, we propose a set of recommendation strategies and develop a graph-based framework for recommendation in online price-comparison services. We verify the superiority of the proposed framework by comparing it with existing methods using real-world data.

In this paper we investigate price decreases made by sellers of multi-component systems. Price reductions are perhaps the most widely used retail tactic to boost sales, and the desired magnitude of price reductions is of great interest to marketers. On the one hand, small price reductions when large reductions are warranted may only deplete retail margins without any impact on sales volume. On ...

Abstract Based on the data set of Behringer (1997), we develop and test competing models of the determinants of witch hunting in Bavaria in the period 1345-1750, which explain the cyclicity as well as the variation over time from the 14th to the 18th century. Our main focus is on economic factors and their influence on the intensity of prosecution. We analyse this issue by quantifying the impor...

Price delegation to the sales force is a practice widely adopted by firms. This paper examines the relationship between price delegation and managerial profits using a laboratory economics experiment. A novel feature of our experiment is that we study how varying the relationship organization of the sales manager and salesperson to allow for 1) requests by the salesperson for the manager to cho...

Web-based interorganizational workflows need efficient time management. Variations of activity durations and branching distributions on or-split nodes make it necessary that we treat time management in workflows in a probabilistic way. We introduce the notion of duration histograms for capturing the available temporal information about workflow execution, define the necessary operations for com...

This article examines a model wherein firms first advertise their existence to consumers and, in the two following periods, compete with uniform pricing and then with behaviour-based price discrimination. I show that allowing firms to price discriminate can restore symmetry in equilibrium advertising decisions. I also establish that price discrimination increases (resp. decreases) profits and t...

We prove a version of Yau’s Schwarz Lemma for general almost-complex manifolds equipped with almost-Hermitian metrics. This requires an extension to this setting of the Laplacian comparison theorem. As an application we show that the product of two almost-complex manifolds does not admit any complete almost-Hermitian metric with bisectional curvature bounded between two negative constants that ...

We use experimental methods to demonstrate the anti-competitive potential of price matching guarantees in both symmetric and asymmetric cost duopolies. Our findings establish that when costs are symmetric, price-matching guarantees significantly increase market prices. In markets with cost asymmetries, guaranteed prices remain high relative to prices without the use of guarantees, but the overa...