We consider the problem of a monopolist seller who is selling a good to a potential buyer and is privately informed about some of the good’s attributes. We focus on the case where goods with di¤erent attributes are horizontally di¤erentiated: they appeal di¤erently to di¤erent types of the buyer. Such a market is represented via a standard Hotelling (1929) model, where the seller’s and the buye...

We study Hotelling’s classic duopoly location model in continuous time with flow payoffs accumulated over time and the price dimension made explicit. In an experimental setting, subjects chose price and location in treatments varying only by the speed of adjustment. We find that the principle of minimum differentiation generally holds, with little distance between subjects’ location decisions. ...

We investigate experimentally the impact of continuous time on a four-player Hotelling location game. The static pure strategy Nash equilibrium (NE) consists of firms paired-up at the first and third quartiles of the linear city. In repeated simultaneous move games (discrete time grid), we fail to obtain convergence to this distinctive NE, as have previous studies. However, with asynchronous mo...

We consider the Hotelling-Downs model with n ≥ 2 office seeking candidates and runoff voting. We show that Nash equilibria in pure strategies always exist and that there are typically multiple equilibria, both convergent (all candidates are located at the median) and divergent (candidates locate at distinct positions), though only divergent equilibria are robust to free entry. Moreover, two-pol...

background: iron chelators are an important part of management of patients with thalassemia. it is prudent to compare efficacy of different iron chelators in treatment of iron overload in these patients who receive regular blood transfusion. we aimed to compare the efficacy and safety of available oral iron chelator; deferasirox (exjade®) with deferasirox (osveral®) in reducing iron overload in...

We propose exact simulation-based procedures for: (i) testing mean-variance efficiency when the zero-beta rate is unknown; (ii) building confidence intervals for the zero-beta rate. On observing that this parameter may be weakly identified, we propose likelihood-ratio-type tests as well as Fieller-type procedures based on a Hotelling-HAC statistic, which are robust to weak identification and al...

This paper considers alternative proofs of the Hotelling ́s Lemma and Shephard ́s Lemma using new relations of duality in the theory of the production. The proofs proposals possess two advantages, relatively to the usual demonstrations, which are, not the use of the known Enveolpe Theorem and the validity of the demonstration for interior points to the production set