Testing for monotonicity, linearity and symmetry between trading volume and price returns in the futures markets of agricultural commodities: a discussion on the financial implications
Studies in Economics and Finance
ISSN: 1086-7376
Article publication date: 23 October 2023
Issue publication date: 13 November 2023
Abstract
Purpose
The aim of this study is to investigate for monotonicity, linearity and symmetry for the price volatility–trading volume relationship in the futures markets of agricultural commodities.
Design/methodology/approach
Empirical findings are produced with the use of a highly flexible, nonparametric approach. Data are daily prices and volumes from the commodities of corn, hard red wheat, oats, rice and soybeans.
Findings
Results reveal violations of monotonicity locally but not globally. Volume and price volatility have, in all markets, a nonlinear relationship to each other, indicating that the strength of the relationship does not remain constant over the entire joint distribution. Global symmetry is rejected for the markets of oats and hard red wheat but cannot be rejected for the remaining three markets. The latter suggests that large values of good volatility are likely to occur together with high trading volumes, as do large values of bad volatility in these markets.
Originality/value
To the best of the authors’ knowledge, this is the first empirical work to test simultaneously for monotonicity, linearity and symmetry between price volatility and trading volume in the futures markets of agricultural commodities.
Keywords
Acknowledgements
Conflict of interest: On behalf of all authors, the corresponding author states that there is no conflict of interest.
Citation
Panagiotou, D. and Karamanis, K. (2023), "Testing for monotonicity, linearity and symmetry between trading volume and price returns in the futures markets of agricultural commodities: a discussion on the financial implications", Studies in Economics and Finance, Vol. 40 No. 5, pp. 996-1020. https://doi.org/10.1108/SEF-03-2023-0138
Publisher
:Emerald Publishing Limited
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