The Rule of Reason, which has come to dominate modern antitrust law, allows defendants the opportunity to justify their conduct by demonstrating “procompetitive” effects. Seizing the opportunity, defendants have begun offering increasingly numerous and creative explanations for their...

We have developed a method for directly learning relative preferences from histories of comparison information without an intermediate utility computation. Our method infers preferences that are rational in a psychological sense, where agent choices result from Bayesian inference of what to do...

The reversibility of sequential economic choices concerning production and consumption is addressed. A geometric approach to substitution effects and output/income effects is set forth in terms of vector fields on bundle space. By means of suitable fixing relations the 0-homogeneity of such...

A dynamic microeconomic model is presented that establishes the price and unit sales evolution of heterogeneous goods consisting of successive homogenous product generations. It suggests that for a fast growing supply the mean price of the generations are governed by a logistic decline towards a...

This paper theoretically derives a general utility function for inferior goods that accounts for the utility derived from both the quality and the quantity aspects of goods in a model with two substitutable consumption goods. We show the conditions under which a good becomes a normal, an...

This paper shows how revealed preference relations, observed under general budget sets, can be extended using closure operators which impose certain assumptions on preferences. Common extensions are based on the assumption that preferences are convex and/or monotonic, but we also consider...

This paper presents a cardinal measure of choice consistency for perturbed utility models. The measure of choice consistency is built on additive errors to the model. The additive errors are meaningful since the perturbed utility model is cardinal and utility differences are meaningful. We...

In this paper we explore the underlying consumer heterogeneity in competitive markets for subscription-based IT services that exhibit network effects. Insights into consumer heterogeneity with respect to a given service are paramount in forecasting future subscriptions, understanding the impact...

This paper takes up the matter of quality choice in undergraduate microeconomics and is divided into two sections. The first develops a conceptual framework underlying a linear demand structure for quality-differentiated goods. The second section incorporates a quality-differentiated demand...

We offer a model to explain why groups of people sometimes converge upon poor decisions and are prone to fads, even though they can discuss the outcomes of their choices. Models of informational herding or cascades have examined how rational individuals learn by observing predecessors' actions,...