%V 9 %I Nature Publishing Group %T Complex derivatives %P 123-125 %N 3 %J Nature Physics %R 10.1038/nphys2575 %X The intrinsic complexity of the financial derivatives market has emerged as both an incentive to engage in it, and a key source of its inherent instability. Regulators now faced with the challenge of taming this beast may find inspiration in the budding science of complex systems. %D 2013 %L eprints1504 %A Stefano Battiston %A Guido Caldarelli %A Co-Pierre Georg %A Robert May %A Joseph Stiglitz %K Statistical physics, thermodynamics and nonlinear dynamics