title: Determining firms׳ utility functions and competitive roles from data on market shares using Lotka-Volterra models.
abstract: In this article, we include data on historical and estimated market shares of two markets. In particular, we include annual data on the market shares of the Japanese beer market (1963-2000) and biannual data on the market shares of the mobile phones market in Greece (1998-2007). In addition, we estimate monthly data on market shares for both markets. We show how this data can be used to derive firms' utility functions and their competitive roles.
authors.affiliation: Department of Mathematics and Applications, University of Naples Federico II, Via Cintia, 80126 Naples, Italy.
authors.forename: A
authors.initials: A
authors.lastname: Marasco
authors.affiliation: Via P. Della Valle, 80126 Naples, Italy.
authors.forename: A
authors.initials: A
authors.lastname: Picucci
authors.affiliation: Erasmus University, Rotterdam Institute of Law and Economics (RILE), 3062 PA Rotterdam, The Netherlands.
authors.forename: A
authors.initials: A
authors.lastname: Romano