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A note on arbitrage, approximate arbitrage and the fundamental theorem of asset pricing

Pricing of Securities 2015-08-14 v1 Probability

Abstract

We provide a critical analysis of the proof of the fundamental theorem of asset pricing given in the paper "Arbitrage and approximate arbitrage: the fundamental theorem of asset pricing" by B. Wong and C.C. Heyde (Stochastics, 2010) in the context of incomplete It\^o-process models. We show that their approach can only work in the known case of a complete financial market model and give an explicit counterexample.

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Cite

@article{arxiv.1311.7027,
  title  = {A note on arbitrage, approximate arbitrage and the fundamental theorem of asset pricing},
  author = {Claudio Fontana},
  journal= {arXiv preprint arXiv:1311.7027},
  year   = {2015}
}

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10 pages