artículo con referato
"Ecological analysis of the world trade"
L. Ermann and D.L. Shepelyansky
Phys. Lett. A 377(3-4) (2013) 250-256
Abstract
Ecological systems have a high complexity combined with stability and rich biodiversity. The analysis of their properties uses a concept of mutualistic networks and provides a detailed understanding of their features being linked to a high nestedness of these networks. Using the United Nations COMTRADE database we show that a similar ecological analysis gives a valuable description of the world trade: countries and trade products are analogous to plants and pollinators, and the whole trade network is characterized by a high nestedness typical for ecological networks. Our approach provides new mutualistic features of the world trade.
DEPARTAMENTO FISICA TEORICA