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Title: Margin trade, short sales and financial stability
Authors: Sng, Hui Ying
Zhang, Y.
Zheng, H.
Keywords: Social sciences::General
Issue Date: 2020
Source: Sng, H. Y., Zhang, Y. & Zheng, H. (2020). Margin trade, short sales and financial stability. Journal of Economic Interaction and Coordination, 15, 673-702.
Journal: Journal of Economic Interaction and Coordination
Abstract: We model how leveraged trading activities constrained by dynamic funding availability affect financial stability. In the market, customers trade based on the fundamental value of the risky asset and make full payment for their transactions, while speculators take trading position based on margin, which is constantly adjusted by the financier, the fund provider, according to the price volatility. As a result of equilibrium price discontinuity triggered by dynamic margin requirements, trivial shocks to external supply, wealth or fundamental value can be transmitted into asset price crashes or jumps. We find that tightening margin requirements improves (mitigates) the market liquidity in the bull (bear) market, and that imposing short sale constraints helps prevent the price from falling further when the asset is sufficiently under-priced and accelerate price collapse when the asset is over-priced.
ISSN: 1860-711X
DOI: 10.1007/s11403-019-00256-3
Rights: © 2019 Springer-Verlag GmbH Germany, part of Springer Nature. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:SSS Journal Articles

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