The dynamics between freight volatility and fleet size growth in dry bulk shipping markets

Xu, Jane Jing ORCID: https://orcid.org/0000-0002-5550-1342, Yip, Tsz Leung and Marlow, Peter B. 2011. The dynamics between freight volatility and fleet size growth in dry bulk shipping markets. Transportation Research Part E Logistics and Transportation Review 47 (6) , pp. 983-991. 10.1016/j.tre.2011.05.008

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Abstract

This paper studies the relationship between the time-varying volatility of dry bulk freight rates and the change of the supply of fleet trading in dry bulk markets. An abundance of research has been done to understand the time-varying characteristics of freight rate volatility, yet few have discussed the determinants of freight volatility. We therefore examine freight volatility against the changes in fleet size and other shipping market variables over January 1973–October 2010. The study employs a two-step model specification. The first step is the measurement of freight rate volatility through an AR-GARCH model; the second step is the analysis of the relationship between freight rate volatility and fleet size growth through a GMM regression. We confirm similar findings in the literature that freight rate volatility is time varying. Furthermore, the results reveal that the change in fleet size positively affects freight rate volatility, while the spot rate volatility of Capesize dry bulk exhibits a stronger reaction to the change in fleet size. The results of this study contribute in a general sense to understanding the systematic risk of shipping markets. ► We examine the determinants of freight volatility in dry bulk shipping markets. ► We adopt a two-step model specification: a GARCH model and a GMM regression. ► Fleet size growth has a positive impact on freight volatility. ► Freight rate volatility is time varying.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Business (Including Economics)
Subjects:	H Social Sciences > H Social Sciences (General) H Social Sciences > HD Industries. Land use. Labor H Social Sciences > HD Industries. Land use. Labor > HD28 Management. Industrial Management H Social Sciences > HE Transportation and Communications
Uncontrolled Keywords:	Freight markets ; Freight volatility ; Fleet size ; GARCH
Publisher:	Elsevier
ISSN:	1366-5545
Date of Acceptance:	14 April 2011
Last Modified:	19 Oct 2022 09:38
URI:	https://orca.cardiff.ac.uk/id/eprint/21707

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