Black-Scholes equation from Gauge Theory of Arbitrage

Details Black-Scholes equation from Gauge Theory of Arbitrage Black-Scholes equation from Gauge Theory of Arbitrage

1997-12-03

arxiv.org/abs/hep-th/9712034v2

Physics

High Energy Physics

High Energy Physics - Theory

Latex, 19 pages

Scientific paper

We apply Gauge Theory of Arbitrage (GTA) {hep-th/9710148} to derivative pricing. We show how the standard results of Black-Scholes analysis appear from GTA and derive correction to the Black-Scholes equation due to a virtual arbitrage and speculators reaction on it. The model accounts for both violation of the no-arbitrage constraint and non-Brownian price walks which resemble real financial data. The correction is nonlocal and transform the differential Black-Scholes equation to an integro-differential one.

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