This paper presents a method for visualizing competitive market structures based on scanner panel date where asymmetries are taken into account. For this, I combined consumer choice models based on mixed logit models with three-mode principal component analysis. This approach can be used to...

Within this paper we study the Minkowski sum of prisms ("Cephoids") in a finite dimensional vector space. We provide a representation of a finite sum of prisms in terms of inequalities. -- Convex analysis ; Minkowski sum ; polytopes

The models used in economic theory, though necessarily abstract, should be consistent with the nature of decision making behavior. A formal metaphor of individual behavior as a continuous flow indicates certain requirements that theories of consumer, producer, and economywide behavior should...