Control theory in Financial Markets

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I unfortunately know very little about Control Theory however what I do understand about it, is that in some sense it deals with feedback in complex systems.
Since the financial markets are complex systems, and very difficult for human beings to regulate. Not to mention the huge explosion of Algorithmic Trading. Certainly it doesn’t seem as if Economics as a whole operates in a state of equilibrium.
So is there a case for control theory being involved in the mathematics of finance? Specifically looking at issues of stability of these complex systems.
I’m by no means an expert, but this seems remotely plausible. Does anyone have anything interesting to add?

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