title: From Innovation to Diversification: A Simple Competitive Model.
abstract: Few attempts have been proposed in order to describe the statistical features and historical evolution of the export bipartite matrix countries/products. An important standpoint is the introduction of a products network, namely a hierarchical forest of products that models the formation and the evolution of commodities. In the present article, we propose a simple dynamical model where countries compete with each other to acquire the ability to produce and export new products. Countries will have two possibilities to expand their export: innovating, i.e. introducing new goods, namely new nodes in the product networks, or copying the productive process of others, i.e. occupying a node already present in the same network. In this way, the topology of the products network and the country-product matrix evolve simultaneously, driven by the countries push toward innovation.
authors.affiliation: Istituto dei Sistemi Complessi - ISC CNR UoS "Sapienza" Physics Department Università di Roma, P.le Aldo Moro 5, 00185, Rome, Italy.
authors.forename: Fabio
authors.initials: F
authors.lastname: Saracco
authors.affiliation: Istituto dei Sistemi Complessi - ISC CNR UoS "Sapienza" Physics Department Università di Roma, P.le Aldo Moro 5, 00185, Rome, Italy.
authors.forename: Riccardo
authors.initials: R
authors.lastname: Di Clemente
authors.affiliation: Istituto dei Sistemi Complessi - ISC CNR UoS "Sapienza" Physics Department Università di Roma, P.le Aldo Moro 5, 00185, Rome, Italy.|IMT Institute for Advanced Studies Lucca, Piazza S. Ponziano 6, 55100, Lucca, Italy.
authors.forename: Andrea
authors.initials: A
authors.lastname: Gabrielli
authors.affiliation: Sapienza, Università di Roma, Piazzale A. Moro 5, 00185, Rome, Italy.|London Institute for Mathematical Sciences, 35a South St, Mayfair, London, United Kingdom.
authors.forename: Luciano
authors.initials: L
authors.lastname: Pietronero
mesh_terms: D000465:Algorithms; D003132:Commerce; D003906:Developing Countries / Q000191:economics*; D004059:Diffusion of Innovation; D004465:Economic Competition; D006801:Humans; D007221:Industry / Q000191:economics*; D008962:Models, Theoretical