The Forbes 400, the Pareto power-law and efficient markets O. S. Klass, O. Biham, M. Levy, O. Malcai and S. Solomon Eur. Phys. J. B, 55 2 (2007) 143-147 Published online: 27 October 2006 DOI: 10.1140/epjb/e2006-00396-1