Modeling the symmetric relation between Baltic Exchange indexes

Kasra Pourkermani

Maritime Business Review, 2022, vol. 8, issue 3, 225-237

Abstract: Purpose - This research provides some evidence by the vine copula approach, suggesting the significant and symmetric causal relation between subsections of Baltic Exchange and hence concluding that investing in different indexes, which is currently a risk diversification system, is not a correct risk reduction strategy. Design/methodology/approach - The daily observations of Baltic Capesize Index (BCI), Baltic Handysize Index (BHSI), Baltic Dirty Tanker Index (BDTI) and Baltic LNG Tanker Index (BLNG) over an eight-year period have been used. After collecting data, calculating the return and estimating the marginal distribution of return rates for each of the indexes applying asymmetric power generalized autoregressive conditional heteroskedasticity and autoregressive moving average (APGARCH-ARMA), and with the assumption of skew student'st-distribution, the dependence of Baltic indexes was modeled based on Vine-R structures. Findings - A positive and symmetrical correlation was observed between the study groups. High and low tail dependence is observed between all four indexes. In other words, the sector business groups associated with each of these indexes react similarly to the extreme events of other groups. The BHSI has a pivotal role in examining the dependency structure of Baltic Exchange indexes. That is, in addition to the direct dependence of Baltic groups, the dependence of each group on the BHSI can transmit accidents and shocks to other groups. Practical implications - Since the Baltic Exchange indexes are tradable, these findings have implications for portfolio design and hedging strategies for investors in shipping markets. Originality/value - Vine copula structures proves the causal relationship between different Baltic Exchange indexes, which are derived from different types of markets.

Keywords: Vine copula constructions; Vines; Dependence; Conditional distribution; Flexibility (search for similar items in EconPapers)
Date: 2022
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Persistent link: https://EconPapers.repec.org/RePEc:eme:mabrpp:mabr-02-2022-0006

DOI: 10.1108/MABR-02-2022-0006

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