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Market maker competition and price efficiency: Evidence from China

Wei Zhang, Ke Huang, Xu Feng and Yongjie Zhang

Economic Modelling, 2017, vol. 66, issue C, 121-131

Abstract: We test the relationship between market maker competition and stock price efficiency. Using the number of market makers as a proxy for competition, the results show a strong positive correlation between competition and stock price efficiency. Moreover, price efficiency is higher when competing market makers have higher research ability. We suggest that market maker competition increases price efficiency through two channels: 1) Competition decreases transaction costs, and 2) Uninformed market makers learn from orders submitted by informed market makers through competition. The latter happens only in the group of market makers with higher experiences. The results imply that the price efficiency can be improved by enhancing the competition of market makers with high research ability and experiences.

Keywords: Market maker; Competition; Price efficiency; Transaction costs; Learning (search for similar items in EconPapers)
Date: 2017
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