In this paper we characterize the existence of best choices of arbitrary binary relations over non finite sets of alternatives, according to the Generalized Optimal-Choice Axiom condition introduced by Schwartz. We focus not just in the best choices of a single set X, but rather in the best...

We model pre-investment R&D decisions in the presence of spillover effects in an option pricing framework with analytic tractability. Two firms face two decisions that are solved for interdependently in a two-stage game. The first-stage decision is: what is the optimal level of coordination...

We show that the entry of a second firm in a horizontally differentiated market (ala Hotelling) may harm consumers as prices increase and consumer's surplus possibly decrease. We first derive the price and the consumer's surplus of a monopoly which is located at the center of the market. When a...

We show that the entry of a second firm in a horizontally differentiated market (ala Hotelling) may harm consumers as prices increase and consumer's surplus possibly decrease. We first derive the price and the consumer's surplus of a monopoly which is located at the center of the market. When a...

We examine the price decisions in a vertically differentiated duopoly where the decision to buy a good depends not only upon the intrinsic utility from consuming it but also upon the social attributes (prestige, uniqueness etc) associated with its consumption. These social attributes are...

In a duopoly model of horizontal and vertical differentiation, where consumers are ex-ante unaware of product qualities, we study the firms' incentives to signal quality via prices. Consumers, after they observe prices, can evaluate a firm's product quality before purchase if they incur a search...

We model in a game theoretic context managerial intervention directed towards value enhancement in the presence of uncertainty and spillover effects. Two firms face real investment opportunities, and before making the irreversible investment decisions, they have options to enhance value by doing...

We provide an explanation for product versioning that is not driven by differential costs or consumer preference heterogeneity, and investigate its implications. Consumers care whether a product they own is better than that owned by others, and whether others own a better product than them....

Matched Model price indexes are generally thought to over-estimate the quality-adjusted price level. This bias stems from the fact that only a fraction of the models are sold in consecutive sampling periods and that the price/performance ratio of these models is worse than that of new models....