Eur. Phys. J. B 74, 243-249 (2010)
https://doi.org/10.1140/epjb/e2010-00079-4

Topological properties of commodities networks

¹ Departamento de Pesquisa, Banco Central do Brasil, SBS Quadra 3, Bloco B, ED. Sede, 13 andar, Brasília, DF, 70074-900, Brasil
² Department of Economics, Universidade Católica de Brasília, Brasília, DF, 70790-160, Brazil
³ Department of Economics, Universidade de Brasília, Campus Darcy Ribeiro, Prédio da FACE, Asa Norte, Brasília, DF, 70910-900, Brazil
⁴ National Institute of Science and Technology for Complex Systems, Rio de Janeiro, RJ, 22290-180, Brazil

Corresponding author: benjamin.tabak@bcb.gov.br

Received: 14 April 2009
Revised: 4 September 2009
Published online: 2 March 2010

Abstract

This paper investigates the topological properties of the commodities networks. We have found that commodities form strong clusters and are homogeneous with relation to sector (metals, agriculture and energy). We also develop a dynamic approach suggesting that agriculture commodities are very important in the network, followed by metals and energy. Furthermore, the parameters that characterize the network seem to be changing over time.