Co-Movement among World Vegetable Oil Prices: A Wavelet-Based Analysis

Authors

  • Abdul Hafizh Mohd Azam Bank Negara Malaysia
  • Tamat Sarmidi Universiti Kebangsaan Malaysia
  • Abu Hassan Shaari Md Nor Universiti Kebangsaan Malaysia
  • Muhamad Rias K V Zainuddin Universiti Malaysia Terengganu

DOI:

https://doi.org/10.33736/ijbs.3312.2020

Keywords:

Purchase intention, Mobile shopping applications, Perceived enjoyment, Perceived usefulness, Perceived ease of use

Abstract

This paper examines the co-movement among major world vegetable oil prices (palm, soybean, rapeseed, and sunflower oil) by using wavelet-based analysis for a dataset ranging from January 2003 until March 2018. The wavelet approach is superior to the other techniques as it provides a flexible tool in investigating the changes in time and frequency domain simultaneously. The empirical result shows that the strong comovement among vegetable oils are driven by strong contagion and interdependence but incomplete vegetable oil market integration among major world vegetable oil. Interestingly, palm oil shows a lower degree of relationship with other edible oil in all scales after 2015. Meanwhile, more recent data shows that soybean and rapeseed oil have shown an increase in interdependence among each other. The study finds that multiple cross-correlations indicate that soybean oil is a potential leader of the vegetable oils market followed by palm oil primarily in the low scale period. This study on the time-frequency domain gives new insight for traders and investors in the vegetable oil market relating to the strategy for portfolio diversification and risk management.

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Published

2020-12-07

How to Cite

Abdul Hafizh Mohd Azam, Tamat Sarmidi, Abu Hassan Shaari Md Nor, & Muhamad Rias K V Zainuddin. (2020). Co-Movement among World Vegetable Oil Prices: A Wavelet-Based Analysis. International Journal of Business and Society, 21(3), 1068–1086. https://doi.org/10.33736/ijbs.3312.2020