Analyzing the Long Term Cohesive Effect of Sector Specific Driving Forces

Yonatan Berman, Eshel Ben-Jacob, Xin Zhang and Yoash Shapira

PLOS ONE, 2016, vol. 11, issue 3, 1-16

Abstract: Financial markets are partially composed of sectors dominated by external driving forces, such as commodity prices, infrastructure and other indices. We characterize the statistical properties of such sectors and present a novel model for the coupling of the stock prices and their dominating driving forces, inspired by mean reverting stochastic processes. Using the model we were able to explain the market sectors’ long term behavior and estimate the coupling strength between stocks in financial markets and the sector specific driving forces. Notably, the analysis was successfully applied to the shipping market, in which the Baltic dry index (BDI), an assessment of the price of transporting the major raw materials by sea, influences the shipping financial market. We also present the analysis of other sectors—the gold mining market and the food production market, for which the model was also successfully applied. The model can serve as a general tool for characterizing the coupling between external forces and affected financial variables and therefore for estimating the risk in sectors and their vulnerability to external stress.

Date: 2016
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0152487

DOI: 10.1371/journal.pone.0152487

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