Elizalde, J. (Javier)
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- Entry Regulation in a Linear Market with Elastic Demand(2014) Rodríguez-Carreño, I. (Ignacio); Kinateder, M. (Markus); Elizalde, J. (Javier)This work performs a comparative welf are analysis of two types of entry regulation in a duopolistic retail market: number of licenses and minimum distance between stores. In a linear (Hotelling) market we show that a minimum distance rule is beneficial for the consumers and disadvantageous for the firms when demand is sufficiently inelastic. The distance rule that maximises social welfare is one quarter of the mark et under which firms will be located at the quartiles. Those loca tions are also optimal under regulated prices. This analysis, which is not yet considered in the literature, is motivated by a change of entry regulat ion in the drugstore market in the Spanish region of Navarre.
- The Address Approach to Horizontal Product Differentiation: A Survey(2011) Elizalde, J. (Javier)The problem of non-existence of perfect equilibrium in the original model of Harold Hotelling and the principle of minimum differentiation he suggested have been tackled on different grounds. This paper provides a survey on the address approach to horizontal product differentiation and the different ways that works after Hotelling solved the problem of non-existence of perfect equilibrium by changing some of the assumptions of the model.
- Framework for Valid Market Definition Tests in Merger Control.(2010) Elizalde, J. (Javier)
- Competition in Multiple Characteristics: An Empirical Test of Location Equilibrium.(2010) Elizalde, J. (Javier)
- Market Definition with Differentiated Products: A Spatial Competition Application(2011) Elizalde, J. (Javier)This paper applies the ‘hypothetical monopolist’ test of market definition to a retail market with products differentiated by means of location and other dimensions. The test for defining the relevant product and geographic market follows the conditions required by the European Union Competition Law and so it takes into account both demand- and supply-side substitution. The empirical model using sales data from a set of movie theatres in the North of Spain, incorporating the observed locations of consumers vis-àvis the stores, shows that empirical tests of market definition may lead to an implausible definition of the relevant market if supply-side substitution is not accounted for.