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Sticky Continuous Processes have Consistent Price Systems

  • Christian Bender (a1), Mikko S. Pakkanen (a2) and Hasanjan Sayit (a3)

Abstract

Under proportional transaction costs, a price process is said to have a consistent price system, if there is a semimartingale with an equivalent martingale measure that evolves within the bid-ask spread. We show that a continuous, multi-asset price process has a consistent price system, under arbitrarily small proportional transaction costs, if it satisfies a natural multi-dimensional generalization of the stickiness condition introduced by Guasoni (2006).

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Copyright

Corresponding author

Postal address: Department of Mathematics, Saarland University, Postfach 151150, D-66041 Saarbrücken, Germany. Email address: bender@math.uni-sb.de
∗∗ Postal address: Department of Mathematics, Imperial College London, South Kensington Campus, London SW7 2AZ, UK. Email address: m.pakkanen@imperial.ac.uk
∗∗∗ Postal address: Department of Mathematical Sciences, Durham University, South Road, Durham DH1 3LE, UK. Email address: hasanjan.sayit@durham.ac.uk

References

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Sticky Continuous Processes have Consistent Price Systems

  • Christian Bender (a1), Mikko S. Pakkanen (a2) and Hasanjan Sayit (a3)

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