A Model of Secular Migration from Centralized to Decentralized Trade

Zhifeng Cai () and Feng Dong ()
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Zhifeng Cai: Rutgers University
Feng Dong: Tsinghua University

Economic Theory, 2021, vol. 72, issue 1, No 7, 244 pages

Abstract: Abstract A large number of financial assets are traded in both exchanges and over-the-counter markets (i.e., centralized and decentralized markets, CM and DM hereafter, respectively). Moreover, as documented by Biais and Green (Rev Econ Dyn 33:250–271, 2019), the twentieth century has witnessed a secular migration of asset trade from CM to DM. To this end, this paper develops a tractable model on strategic selection of venue trading to study the causes and consequences of the endogenous coexistence of CM and DM. In the model, traders’ choice of venue is shaped by the trade-off between information frictions in the CM and matching frictions in the DM. Closed-form solutions are obtained and used to characterize the endogenous share of trade across the two venues. We then use the model to evaluate two potential explanations of the migration from CM to DM: improvements in matching technologies and increases in the number of institutional investors. Surprisingly, while both forces could lead to more trade in DM, there exist parameter regions where the increase in the number of institutional investors leads to less trade in DM. We also obtain empirically testable implications that differentiate the two explanations.

Keywords: Exchange versus over-the-counter (OTC) Market; Adverse selection; Search frictions; Institutional investors; Fragmented financial markets (search for similar items in EconPapers)
JEL-codes: D61 D82 D83 L10 (search for similar items in EconPapers)
Date: 2021
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DOI: 10.1007/s00199-020-01280-2

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