This paper considers the relationship between traded volume and volatility. We employ short sales data to discriminate between transactions that close existing long positions and transactions that establish new short positions. We test for, and where appropriate, incorporate non-linearity and asymmetry into the modelling process. The evidence supports a non-linear, bi-directional relationship between volume and volatility. The results suggest (i) that the market displays greater volatility following a period of short selling and (ii) that asymmetric responses to positive and negative innovations to returns appear to be exacerbated by short selling.
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Paper provided by Hong Kong Institute for Monetary Research in its series Working Papers with number
232004.
Length: 23 pages Date of creation: Dec 2004 Date of revision: Handle: RePEc:hkm:wpaper:232004
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[Downloadable!] (restricted)
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"Speculative Dynamics,"
NBER Working Papers
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Culter, D.M. & Poterba, J.M. & Summers, L.H., 1990.
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544, Massachusetts Institute of Technology (MIT), Department of Economics.
Nicholas Barberis & Andrei Shleifer & Robert W. Vishny, 1997.
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