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Dynamic connectedness between global commodity sectors, news sentiment, and sub-Saharan African equities

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  • Agyei, Samuel Kwaku
  • Umar, Zaghum
  • Bossman, Ahmed
  • Teplova, Tamara

Abstract

We examine the static and time-varying spillovers between global commodity sectors, economic news sentiment, and sub-Saharan African (SSA) equities. In a time-varying parameter vector autoregressions spillover connectedness approach, we find that: (i) there are significant spillovers between SSA equities, economic news sentiment, and global commodity sectors; (ii) the connectedness evolves across different times and is amplified by market crises; (iii) there are suitable market-specific SSA equities that bear safe-haven and hedge attributes for global commodity investors; (iv) agriculture is the main source of return and volatility spillovers; and (v) economic news sentiment index is a net transmitter of spillover during systemic crisis periods such as GFC and the COVID-19 pandemic. Our findings have notable implications for international investors, regulators, and practitioners.

Suggested Citation

  • Agyei, Samuel Kwaku & Umar, Zaghum & Bossman, Ahmed & Teplova, Tamara, 2023. "Dynamic connectedness between global commodity sectors, news sentiment, and sub-Saharan African equities," Emerging Markets Review, Elsevier, vol. 56(C).
    • Handle: RePEc:eee:ememar:v:56:y:2023:i:c:s1566014123000547
    DOI: 10.1016/j.ememar.2023.101049
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    1. Dirk G. Baur & Brian M. Lucey, 2010. "Is Gold a Hedge or a Safe Haven? An Analysis of Stocks, Bonds and Gold," The Financial Review, Eastern Finance Association, vol. 45(2), pages 217-229, May.
    2. Bossman, Ahmed & Agyei, Samuel Kwaku, 2022. "Interdependence structure of global commodity classes and African equity markets: A vector wavelet coherence analysis," Resources Policy, Elsevier, vol. 79(C).
    3. Diebold, Francis X. & Yılmaz, Kamil, 2014. "On the network topology of variance decompositions: Measuring the connectedness of financial firms," Journal of Econometrics, Elsevier, vol. 182(1), pages 119-134.
    4. Boungou, Whelsy & Yatié, Alhonita, 2022. "The impact of the Ukraine–Russia war on world stock market returns," Economics Letters, Elsevier, vol. 215(C).
    5. Umar, Zaghum & Gubareva, Mariya, 2021. "Faith-based investments and the Covid-19 pandemic: Analyzing equity volatility and media coverage time-frequency relations," Pacific-Basin Finance Journal, Elsevier, vol. 67(C).
    6. Samuel Kwaku Agyei & Ahmed Bossman, 2023. "Exploring the dynamic connectedness between commodities and African equities," Cogent Economics & Finance, Taylor & Francis Journals, vol. 11(1), pages 2186035-218, December.
    7. Adekoya, Oluwasegun B. & Asl, Mahdi Ghaemi & Oliyide, Johnson A. & Izadi, Parviz, 2023. "Multifractality and cross-correlation between the crude oil and the European and non-European stock markets during the Russia-Ukraine war," Resources Policy, Elsevier, vol. 80(C).
    8. Libo Yin & Jing Nie & Liyan Han, 2021. "Intermediary capital risk and commodity futures volatility," Journal of Futures Markets, John Wiley & Sons, Ltd., vol. 41(5), pages 577-640, May.
    9. Liu, Chang & Sun, Xiaolei & Wang, Jun & Li, Jianping & Chen, Jianming, 2021. "Multiscale information transmission between commodity markets: An EMD-Based transfer entropy network," Research in International Business and Finance, Elsevier, vol. 55(C).
    10. Constantin Gurdgiev & Conor O’Riordan, 2021. "A Wavelet Perspective of Crisis Contagion between Advanced Economies and the BRIC Markets," JRFM, MDPI, vol. 14(10), pages 1-29, October.
    11. Mensi, Walid & Shafiullah, Muhammad & Vo, Xuan Vinh & Kang, Sang Hoon, 2022. "Spillovers and connectedness between green bond and stock markets in bearish and bullish market scenarios," Finance Research Letters, Elsevier, vol. 49(C).
    12. Koop, Gary & Korobilis, Dimitris, 2014. "A new index of financial conditions," European Economic Review, Elsevier, vol. 71(C), pages 101-116.
    13. Izunna Anyikwa & Pierre Le Roux, 2020. "Integration of African Stock Markets with the Developed Stock Markets: An Analysis of Co-Movements, Volatility and Contagion," International Economic Journal, Taylor & Francis Journals, vol. 34(2), pages 279-296, April.
    14. Narayan, Paresh Kumar & Narayan, Seema & Sharma, Susan Sunila, 2013. "An analysis of commodity markets: What gain for investors?," Journal of Banking & Finance, Elsevier, vol. 37(10), pages 3878-3889.
    15. Boako, Gideon & Alagidede, Imhotep Paul & Sjo, Bo & Uddin, Gazi Salah, 2020. "Commodities price cycles and their interdependence with equity markets," Energy Economics, Elsevier, vol. 91(C).
    16. Khalfaoui, Rabeh & Gozgor, Giray & Goodell, John W., 2023. "Impact of Russia-Ukraine war attention on cryptocurrency: Evidence from quantile dependence analysis," Finance Research Letters, Elsevier, vol. 52(C).
    17. Adams, Zeno & Collot, Solène & Kartsakli, Maria, 2020. "Have commodities become a financial asset? Evidence from ten years of Financialization," Energy Economics, Elsevier, vol. 89(C).
    18. Samuel Kwaku Agyei & Peterson Owusu Junior & Ahmed Bossman & Emmanuel Yaw Arhin & Stefan Cristian Gherghina, 2022. "Situated Information Flow between Food Commodity and Regional Equity Markets: An EEMD-Based Transfer Entropy Analysis," Discrete Dynamics in Nature and Society, Hindawi, vol. 2022, pages 1-28, April.
    19. Umar, Zaghum & Gubareva, Mariya & Yousaf, Imran & Ali, Shoaib, 2021. "A tale of company fundamentals vs sentiment driven pricing: The case of GameStop," Journal of Behavioral and Experimental Finance, Elsevier, vol. 30(C).
    20. Sensoy, Ahmet & Hacihasanoglu, Erk & Nguyen, Duc Khuong, 2015. "Dynamic convergence of commodity futures: Not all types of commodities are alike," Resources Policy, Elsevier, vol. 44(C), pages 150-160.
    21. Kumah, Seyram Pearl & Odei-Mensah, Jones, 2021. "Are Cryptocurrencies and African stock markets integrated?," The Quarterly Review of Economics and Finance, Elsevier, vol. 81(C), pages 330-341.
    22. Umar, Zaghum & Aziz, Saqib & Tawil, Dima, 2021. "The impact of COVID-19 induced panic on the return and volatility of precious metals," Journal of Behavioral and Experimental Finance, Elsevier, vol. 31(C).
    23. Zaremba, Adam & Umar, Zaghum & Mikutowski, Mateusz, 2021. "Commodity financialisation and price co-movement: Lessons from two centuries of evidence," Finance Research Letters, Elsevier, vol. 38(C).
    24. Ahmed Bossman & Samuel Kwaku Agyei & Peterson Owusu Junior & Ellen Animah Agyei & Patrick Kwashie Akorsu & Edward Marfo-Yiadom & George Amfo-Antiri & Mariya Gubareva, 2022. "Flights-to-and-from-Quality with Islamic and Conventional Bonds in the COVID-19 Pandemic Era: ICEEMDAN-Based Transfer Entropy," Complexity, Hindawi, vol. 2022, pages 1-25, January.
    25. Mensi, Walid & Al-Yahyaee, Khamis Hamed & Vo, Xuan Vinh & Kang, Sang Hoon, 2021. "Modeling the frequency dynamics of spillovers and connectedness between crude oil and MENA stock markets with portfolio implications," Economic Analysis and Policy, Elsevier, vol. 71(C), pages 397-419.
    26. Jörg Mayer, 2012. "The Growing Financialisation of Commodity Markets: Divergences between Index Investors and Money Managers," Journal of Development Studies, Taylor & Francis Journals, vol. 48(6), pages 751-767, June.
    27. Boateng, Ebenezer & Adam, Anokye M. & Junior, Peterson Owusu, 2021. "Modelling the heterogeneous relationship between the crude oil implied volatility index and African stocks in the coronavirus pandemic," Resources Policy, Elsevier, vol. 74(C).
    28. Adams, Zeno & Glück, Thorsten, 2015. "Financialization in commodity markets: A passing trend or the new normal?," Journal of Banking & Finance, Elsevier, vol. 60(C), pages 93-111.
    29. Będowska-Sójka, Barbara & Demir, Ender & Zaremba, Adam, 2022. "Hedging Geopolitical Risks with Different Asset Classes: A Focus on the Russian Invasion of Ukraine," Finance Research Letters, Elsevier, vol. 50(C).
    30. Francis X. Diebold & Laura Liu & Kamil Yilmaz, 2018. "Commodity Connectedness," Central Banking, Analysis, and Economic Policies Book Series, in: Enrique G. Mendoza & Ernesto Pastén & Diego Saravia (ed.),Monetary Policy and Global Spillovers: Mechanisms, Effects and Policy Measures, edition 1, volume 25, chapter 4, pages 097-136, Central Bank of Chile.
    31. Huiming Zhu & Rui Huang & Ningli Wang & Liya Hau, 2020. "Does economic policy uncertainty matter for commodity market in China? Evidence from quantile regression," Applied Economics, Taylor & Francis Journals, vol. 52(21), pages 2292-2308, May.
    32. Antonakakis, Nikolaos & Chatziantoniou, Ioannis & Filis, George, 2017. "Oil shocks and stock markets: Dynamic connectedness under the prism of recent geopolitical and economic unrest," International Review of Financial Analysis, Elsevier, vol. 50(C), pages 1-26.
    33. Umar, Zaghum & Nasreen, Samia & Solarin, Sakiru Adebola & Tiwari, Aviral Kumar, 2019. "Exploring the time and frequency domain connectedness of oil prices and metal prices," Resources Policy, Elsevier, vol. 64(C).
    34. Harry Markowitz, 1952. "Portfolio Selection," Journal of Finance, American Finance Association, vol. 7(1), pages 77-91, March.
    35. Bossman, Ahmed & Gubareva, Mariya & Teplova, Tamara, 2023. "Asymmetric effects of geopolitical risk on major currencies: Russia-Ukraine tensions," Finance Research Letters, Elsevier, vol. 51(C).
    36. Zaghum Umar & Mariya Gubareva & Muhammad Naeem & Ayesha Akhter, 2021. "Return and volatility transmission between oil price shocks and agricultural commodities," PLOS ONE, Public Library of Science, vol. 16(2), pages 1-18, February.
    37. Demirer, Rıza & Lee, Hsiang-Tai & Lien, Donald, 2015. "Does the stock market drive herd behavior in commodity futures markets?," International Review of Financial Analysis, Elsevier, vol. 39(C), pages 32-44.
    38. Esparcia, Carlos & Jareño, Francisco & Umar, Zaghum, 2022. "Revisiting the safe haven role of Gold across time and frequencies during the COVID-19 pandemic," The North American Journal of Economics and Finance, Elsevier, vol. 61(C).
    39. Zaghum Umar & Ayesha Sayed & Mariya Gubareva & Xuan Vinh Vo, 2023. "Influence of unconventional monetary policy on agricultural commodities futures: network connectedness and dynamic spillovers of returns and volatility," Applied Economics, Taylor & Francis Journals, vol. 55(22), pages 2521-2535, May.
    40. Samuel Kwaku Agyei & Anokye Mohammed Adam & Ahmed Bossman & Oliver Asiamah & Peterson Owusu Junior & Roberta Asafo-Adjei & Emmanuel Asafo-Adjei, 2022. "Does volatility in cryptocurrencies drive the interconnectedness between the cryptocurrencies market? Insights from wavelets," Cogent Economics & Finance, Taylor & Francis Journals, vol. 10(1), pages 2061682-206, December.
    41. Bossman, Ahmed & Gubareva, Mariya & Teplova, Tamara, 2023. "EU sectoral stocks amid geopolitical risk, market sentiment, and crude oil implied volatility: An asymmetric analysis of the Russia-Ukraine tensions," Resources Policy, Elsevier, vol. 82(C).
    42. Ahmed Bossman & Tamara Teplova & Zaghum Umar & Gang Jin Wang, 2022. "Do Local and World COVID-19 Media Coverage Drive Stock Markets? Time-Frequency Analysis of BRICS," Complexity, Hindawi, vol. 2022, pages 1-14, September.
    43. Boako, Gideon & Alagidede, Paul, 2016. "Global commodities and African stocks: A ‘market of one?’," International Review of Financial Analysis, Elsevier, vol. 44(C), pages 226-237.
    44. Zaghum Umar & Mariya Gubareva, 2021. "The relationship between the Covid-19 media coverage and the Environmental, Social and Governance leaders equity volatility: a time-frequency wavelet analysis," Applied Economics, Taylor & Francis Journals, vol. 53(27), pages 3193-3206, June.
    45. Nikolaos Antonakakis & Ioannis Chatziantoniou & David Gabauer, 2020. "Refined Measures of Dynamic Connectedness based on Time-Varying Parameter Vector Autoregressions," JRFM, MDPI, vol. 13(4), pages 1-23, April.
    46. Bossman, Ahmed & Umar, Zaghum & Agyei, Samuel Kwaku & Teplova, Tamara, 2023. "The impact of the US yield curve on sub-Saharan African equities," Finance Research Letters, Elsevier, vol. 53(C).
    47. Baldi, Lucia & Peri, Massimo & Vandone, Daniela, 2016. "Stock markets’ bubbles burst and volatility spillovers in agricultural commodity markets," Research in International Business and Finance, Elsevier, vol. 38(C), pages 277-285.
    48. Umar, Zaghum & Adekoya, Oluwasegun Babatunde & Oliyide, Johnson Ayobami & Gubareva, Mariya, 2021. "Media sentiment and short stocks performance during a systemic crisis," International Review of Financial Analysis, Elsevier, vol. 78(C).
    49. Ahmed Bossman & Samuel Kwaku Agyei & Yuxing Li, 2022. "ICEEMDAN-Based Transfer Entropy between Global Commodity Classes and African Equities," Mathematical Problems in Engineering, Hindawi, vol. 2022, pages 1-28, July.
    50. Adams, Zeno & Glueck, Thorsten, 2014. "Financialization in Commodity Markets: A Passing Trend or the New Normal?," Working Papers on Finance 1413, University of St. Gallen, School of Finance, revised Aug 2015.
    51. Bossman, Ahmed & Umar, Zaghum & Teplova, Tamara, 2022. "Modelling the asymmetric effect of COVID-19 on REIT returns: A quantile-on-quantile regression analysis," The Journal of Economic Asymmetries, Elsevier, vol. 26(C).
    52. Boako, Gideon & Alagidede, Paul, 2017. "Co-movement of Africa’s equity markets: Regional and global analysis in the frequency–time domains," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 468(C), pages 359-380.
    53. Conghui Hu & Zhibing Li & Xiaoyu Liu, 2020. "Liquidity shocks, commodity financialization, and market comovements," Journal of Futures Markets, John Wiley & Sons, Ltd., vol. 40(9), pages 1315-1336, September.
    54. Imhotep Paul Alagidede & Gideon Boako & Bo Sjo, 2021. "African equity markets’ exposure to oil and other commodities - implications for global portfolio diversification," Journal of Economics and Finance, Springer;Academy of Economics and Finance, vol. 45(2), pages 288-315, April.
    55. Umar, Zaghum & Bossman, Ahmed & Choi, Sun-Yong & Teplova, Tamara, 2022. "Does geopolitical risk matter for global asset returns? Evidence from quantile-on-quantile regression," Finance Research Letters, Elsevier, vol. 48(C).
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    More about this item

    Keywords

    Commodity sectors; Economic news sentiment; sub-Saharan Africa; Equities markets; Emerging markets; Spillover connectedness;
    All these keywords.

    JEL classification:

    • C22 - Mathematical and Quantitative Methods - - Single Equation Models; Single Variables - - - Time-Series Models; Dynamic Quantile Regressions; Dynamic Treatment Effect Models; Diffusion Processes
    • C32 - Mathematical and Quantitative Methods - - Multiple or Simultaneous Equation Models; Multiple Variables - - - Time-Series Models; Dynamic Quantile Regressions; Dynamic Treatment Effect Models; Diffusion Processes; State Space Models
    • C58 - Mathematical and Quantitative Methods - - Econometric Modeling - - - Financial Econometrics
    • G01 - Financial Economics - - General - - - Financial Crises
    • G11 - Financial Economics - - General Financial Markets - - - Portfolio Choice; Investment Decisions
    • G12 - Financial Economics - - General Financial Markets - - - Asset Pricing; Trading Volume; Bond Interest Rates
    • G15 - Financial Economics - - General Financial Markets - - - International Financial Markets
    • N27 - Economic History - - Financial Markets and Institutions - - - Africa; Oceania
    • Q02 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - General - - - Commodity Market

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