No arbitrage without semimartingales
classification
🧮 math.PR
keywords
arbitragesemimartingalesadmitallowablebrownianexamplefractionalmotion
read the original abstract
We show that with suitable restrictions on allowable trading strategies, one has no arbitrage in settings where the traditional theory would admit arbitrage possibilities. In particular, price processes that are not semimartingales are possible in our setting, for example, fractional Brownian motion.
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