Convergence of Markovian price processes in a financial market transaction model

Convergence of Markovian price processes in a financial market transaction model

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Article ID: iaor20171809
Volume: 17
Issue: 1
Start Page Number: 239
End Page Number: 273
Publication Date: Apr 2017
Journal: Operational Research
Authors: , ,
Keywords: economics, investment, simulation, markov processes
Abstract:

This paper studies a financial market transaction model and convergence of Markovian price processes generated by an α equ1 ‐double auction in Xu et al. (Expert Syst Appl 41(16):7032–7045, 2014) and extends their results for a fixed α equ2 in [0, 1] to the case where α equ3 is governed by a time non‐homogeneous Markov chain over a set of finite states defined by R { α 1 , α 2 , , α r } equ4 , 0 α 1 < α 2 < < α r 1 equ5 . A convergence result similar to that in Xu et al. (2014) holds, with the fixed α equ6 replaced with the average α = 1 r θ = 1 r α θ equ7 . We also identify the conditions under which a price process generated by such a Markovian α equ8 ‐double auction converges in probability to a Walrasian equilibrium of the underlying financial market transaction model. A number of simulations are conducted and these simulations are consistent with the theoretical results of the paper.

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