From the reviews: "The conference organizers Misako Takayasu, Hideki Takayasu and Tsutomu Watanabe have collected in a volume the papers presented at the APFA 7 conference. ... the volume provides a good guide to get information on current research conducted in Econophysics and to first approach extremely timely topics such as the role of bubbles in finance, systemic risk and the role of large amounts of data in research of economic and social complex systems." (R. N. Mantegna, Il Nuovo Saggiatore, Vol. 27 (5-6), 2011)