Events in MathSys and Complexity Science
This is a calendar page detailing events within the MathSys CDT. It also acts as a booking diary for the Seminar Room D1.07. To book D1.07 please email Sheetal.Sharma@warwick.ac.uk
Please note that your event booking is for D1.07 only. The adjacent common room is a private area for the MathSys Centre that cannot used as part of your booking.
MathSys CDT events have priority for D1.07 room bookings.
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Complexity Forum: Doyne Farmer (Oxford / Santa Fe Institute)
Location: D1.07
Speaker: Doyne Farmer (Oxford Martin School, University of Oxford and Santa Fe Institute)
Title: Systemic risk in finance and elsewhere
Abstract:
In finance systemic risk often comes about as the unintended consequences of the attempts of individual institutions to reduce risk. I will present two models that illustrate this point. One is a model of leveraged value investing funds, and the other is a network model of leveraged funds (such as banks) who are connected by holding common assets. Both of these models demonstrate how systemic risk comes about through nonlinear amplification mechanisms that emerge as an unintended side-effect of otherwise reasonable individual behaviors -- indeed such behaviors are often intended to reduce risk. This problem is exacerbated in evolutionary settings where individual agents are all changing their behavior, and are thus unable to extrapolate the behavior of others as they evolve. I will argue that systemic risk in finance is often driven by disruptions in market ecology, which are related to deviations from market efficiency, and thus are not well addressed by traditional economic theory, which assumes such inefficiencies away.
Lunch group: 5