Dynamic bid–ask pricing under Dempster-Shafer uncertainty

Andrea Cinfrignini, Davide Petturiti and Barbara Vantaggi

Journal of Mathematical Economics, 2023, vol. 107, issue C

Abstract: We deal with the problem of pricing in a multi-period binomial market model, allowing for frictions in the form of bid–ask spreads. We introduce and characterize time-homogeneous Markov multiplicative binomial processes under Dempster-Shafer uncertainty together with the induced conditional Choquet expectation operator. Given a market formed by a frictionless risk-free bond and a non-dividend paying stock with frictions, we prove the existence of an equivalent one-step Choquet martingale belief function. We then propose a dynamic Choquet pricing rule with bid–ask spreads showing that the discounted lower price process of a European derivative contract on the stock is a Choquet super-martingale. We finally provide a normative justification in terms of a dynamic generalized no-arbitrage condition relying on the notion of partially resolving uncertainty due to Jaffray.

Keywords: Time-homogeneous Markov multiplicative binomial process; Belief function; Dynamic pricing rule; Bid–ask spread (search for similar items in EconPapers)
Date: 2023
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Persistent link: https://EconPapers.repec.org/RePEc:eee:mateco:v:107:y:2023:i:c:s0304406823000642

DOI: 10.1016/j.jmateco.2023.102871

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