The Impact of COVID-19 on Power Generation Companies in the Tehran Stock Exchange

Ehterami, Mohammad Parsa; Ahmadzadeh, Khaled; Javaheri, Bakhtiar; Amani, Ramin

doi:10.48308/jep.2026.241432.1246

The Impact of COVID-19 on Power Generation Companies in the Tehran Stock Exchange

Articles in Press

Document Type : Original Article

Authors

¹ Ph.D. Candidate, Department of Economics, Faculty of Humanities and Social Sciences, University of Kurdistan, Sanandaj, Iran.

² Associate Professor, Department of Economics, Faculty of Humanities and Social Sciences, University of Kurdistan, Sanandaj, Iran.

³ Ph.D. Candidate in Economics, Department of Economic Development and Planning, Faculty of Management and Economics, Tarbiat Modares University, Tehran, Iran

10.48308/jep.2026.241432.1246

Abstract

The COVID-19 pandemic has emerged as one of the most significant public health crises in recent decades, exerting far-reaching effects not only on human health but also on global economies and financial markets. Its disruptive nature created unprecedented uncertainty, making it essential to understand sector-specific impacts. This study examines the consequences of the pandemic for the performance of power generation companies listed on the Tehran Stock Exchange during the period from April 2020 to July 2023. To achieve this, a Structural Vector Autoregression (SVAR) model was employed, incorporating several key variables such as COVID-19 mortality and infection rates per million people, international oil prices, global gold prices, and foreign exchange rates. The empirical results indicate that higher COVID-19 mortality and infection rates exerted a significant negative effect on the performance of power generation companies, reflecting the sensitivity of this sector to public health shocks. Conversely, increases in oil prices and exchange rates were associated with improved company performance, while rising gold prices had adverse effects. These findings highlight the importance of strategic policymaking to mitigate economic vulnerabilities during pandemics and strengthen market resilience in the face of future crises.

Keywords

References

Alijani, M., Banimahd, B., Nikoomaram, H., & Yaghobnezhad, A. (2021). Fractal analysis and the relationship between the efficiency of capital market indices and COVID-19 in Iran. Results in Physics, 25, 104262. https://doi.org/10.1016/j.rinp.2021.104262

Artpairin, A., & Pinmanee, S. (2023). Critical Success Factors in the Management of Petrochemical Construction Projects for Contractors and Subcontractors During the COVID-19 Pandemic. International Journal of Construction Management, 23(11), 1956-1968. https://doi.org/10.1080/15623599.2022.2029678

Ashraf B. N. (2020). Stock markets' reaction to COVID-19: Cases or fatalities? Research in international business and finance, 54, 101249. https://doi.org/10.1016/j.ribaf.2020.101249

Atri, H., Kouki, S., & imen Gallali, M. (2021). The impact of COVID-19 news, panic, and media coverage on the oil and gold prices: An ARDL approach. Resources Policy, 72, 102061. https://doi.org/10.1016/j.resourpol.2021.102061

Baker, M. and Wurgler, J. (2006). Investor Sentiment and the Cross-Section of Stock Returns. The Journal of Finance, 61: 1645-1680. https://doi.org/10.1111/j.1540-6261.2006.00885.x

Baker, S. R., Bloom, N., Davis, S. J., Kost, K., Sammon, M. C., & Viratyosin, T. (2020). The unprecedented stock market impact of COVID-19. National Bureau of Economic Research.

Baky Haskuee, M., Rouhi Fard, P., Farazandeh, A., & Shakeri, A. (2020). The Effect of the COVID-19 Outbreak on Registered Oil Companies at the Tehran Stock Exchange. Petroleum Business Review, 4(4), 77-87.

Bernanke, B. S. (1986). Alternative explanations of the money-income correlation. https://doi.org/https://doi.org/10٫1016/0167-2231(86)90037-0

Blanchard, O. J., & Quah, D. (1988). The dynamic effects of aggregate demand and supply disturbances. https://doi.org/10.2307/1816431

Blanchard, O. J., & Watson, M. W. (1986). Are business cycles all alike?. In The American business cycle: Continuity and change (pp. 123-180). University of Chicago Press.

Brynjolfsson, E., Horton, J. J., Ozimek, A., Rock, D., Sharma, G., & TuYe, H. Y. (2020). COVID-19 and remote work: An early look at US data (No. w27344). National Bureau of Economic Research.

Chai, J., Zhao, C., Hu, Y., & Zhang, Z. G. (2021). Structural analysis and forecast of gold price returns. Journal of Management Science and Engineering, 6(2), 135-145. https://doi.org/10.1016/j.jmse.2021.06.002

Chen, H., Liu, L., Wang, Y., & Zhu, Y. (2016). Oil price shocks and US dollar exchange rates. Energy, 112, 1036-1048. https://doi.org/10.1016/j.energy.2016.06.079

Chesher, A., & Smolinski, K. (2009). IV models of ordered choice. Journal of Econometrics, 166, 33-48. https://doi.org/10.1920/WP.CEM.2009.3709

Cheshomi, A., & Osmani, F. (2022). Stock Market Returns in Iran in Three Waves of COVID-19 Pandemic: Evidence of Multiple Breaks Regression. Iranian Journal of Economic Studies, 10(2), 339-364.

Clarida, R., & Gali, J. (1994, December). Sources of real exchange-rate fluctuations: How important are nominal shocks?. In Carnegie-Rochester conference series on public policy (Vol. 41, pp. 1-56). North-Holland. https://doi.org/10.1016/0167-2231(94)90008-6

Duppati, G., Kumar, A. S., Matlani, N., Rena, R., & Kijkasiwat, P. (2025). Safe-Haven Dynamics: Asset Pricing and Resource Reallocation in Global Market Crises. Asia-Pacific Financial Markets, 1-27. https://doi.org/10.1007/s10690-025-09535-5

Dadgar, Y. (2020). Coronavirus and emergence of an extraordinary political economy: editorial note. International Journal of New Political Economy, 1(2), 1-11.

Dadgar, Y., Fahimifar, F., & Nazari, R. (2020). Analyzing the synchronization of exchange rate cycles with oil prices, gold prices, and stock market value in Iran: A Markov-switching model with a component structure. Economics and Modeling, 11(3), 151–193. https://doi.org/10.29252/jem.2021.202624.1542 (In Persian)

Ehterami, M. P., Ahmadzadeh, K., & Javaheri, B. (2024). Investigating the impact of the COVID-19 pandemic on the performance of petrochemical companies listed on the Tehran Stock Exchange. Economic Policies and Research, 2(4), 36–69. https://doi.org/10.22034/jepr.2024.140957.1103 (In Persian)

Geweke, J. (1978). Testing the exogeneity specification in the complete dynamic simultaneous equation model. Journal of Econometrics, 7, 163-185. https://doi.org/10.1016/0304-4076(78)90067-2

Gharib, C., Mefteh-Wali, S., & Jabeur, S. B. (2021). The bubble contagion effect of COVID-19 outbreak: Evidence from crude oil and gold markets. Finance research letters, 38, 101703. https://doi.org/10.1016/j.frl.2020.101703

Goodell, J. W., & Huynh, T. L. D. (2020). Did Congress trade ahead? Considering the reaction of US industries to COVID-19. Finance Research Letters, 36, 101578. https://doi.org/10.1016/j.frl.2020.101578

Harjoto, M. A., Rossi, F., Lee, R., & Sergi, B. S. (2021). How do equity markets react to COVID-19? Evidence from emerging and developed countries. Journal of Economics and Business, 115, 105966. https://doi.org/10.1016/j.jeconbus.2020.105966

Leeper, E. M., Sims, C. A., Zha, T., Hall, R. E., & Bernanke, B. S. (1996). What Does Monetary Policy Do? Brookings Papers on Economic Activity, 1996(2), 1–78. https://doi.org/10.2307/2534619

Lima de Miranda, K., & Snower, D. J. (2022). The societal responses to COVID-19: Evidence from the G7 countries. Proceedings of the National Academy of Sciences of the United States of America, 119(25), e2117155119. https://doi.org/10.1073/pnas.2117155119

McCrorie, J. (2001). Interpolating exogenous variables in continuous time dynamic models. Journal of Economic Dynamics and Control, 25, 1399-1427. https://doi.org/10.1016/S0165-1889(99)00061-5

Meher, B. K., Hawaldar, I. T., Gil, M. T., & Dum, D. Z. (2021). Measuring Leverage Effect of Covid 19 on Stock Price Volatility of Energy Companies Using High Frequency Data. International Journal of Energy Economics and Policy, 11(6), 489–502. Retrieved from https://econjournals.com/index.php/ijeep/article/view/11866

Mojaverian, S. , Eshghi, F. and Ahangari, S. (2023). The Impact of the Covid-19 Outbreak on the Stock Value of Food Companies: Case Study of the Tehran Stock Exchange- Iran. Journal of Agricultural Economics & Development, 36(4), 353-361. doi: 10.22067/jead.2022.71165.1053

Ma, S. (2025). The Impact of the COVID-19 Pandemic on Global Stock Market Volatility: An Integrated Analysis Using Event Study and GARCH Models. In SHS Web of Conferences (Vol. 225, p. 02006). EDP Sciences.

Ortmann, R., Pelster, M., & Wengerek, S. T. (2020). COVID-19 and investor behavior. Finance research letters, 37, 101717. https://doi.org/10.1016/j.frl.2020.101717

Rashata, H. (2021). Firm Characteristics and Firm Performance during the COVID-19 Pandemic: Evidence from an emerging market. International Journal of Finance & Economics.

Raygan, E., a E., & Khosravi, H. (2022). The effects of COVID-19 and the impact of sudden shocks on the various industry indices. Journal of Advanced Pharmacy Education & Research| Oct-Dec, 12(4), 115.

Razavi, S. A., Asgary, A., & Khaleghi, M. (2022). The impact of the COVID-19 pandemic on Iranian oil and gas industry planning: A survey of business continuity challenges. International Journal of Disaster Risk Science, 13(3), 391-400. https://doi.org/10.1007/s13753-022-00439-5

Sansa, N. A. (2020). The Impact of the COVID-19 on the Financial Markets: Evidence China and USA. Electronic Research Journal of Social Sciences and Humanities, 2.

Sarfaraz, A. H., Yazdi, A. K., Hanne, T., Gizem, Ö., Khalili-Damghani, K. & Husseinagha, S. M. (2022). Analyzing the investment behavior in the Iranian stock exchange during the COVID-19 pandemic using hybrid DEA and data mining techniques. Mathematical Problems in Engineering, 2022. https://doi.org/10.1155/2022/4672972

Shahrazi, M., Ghaderi, S., & Sanginabadi, B. (2023). Commodity prices and inflation: an application of structural VAR. Applied Economics, 55(27), 3110-3120.https://doi.org/10,1080/00036846,2022,2108753.

Zivot, E., & Donald, W. K. Andrews. (1992). Further Evidence on the Great Crash, the Oil-Price Shock, and the Unit-Root Hypothesis. Journal of Business & Economic Statistics, 10(3), 251–270. https://doi.org/10.1080/07350015.1992.10509983

Zarei, S., & Honarmandi, Z. (2022). COVID-19 outbreak and sectoral-level stock returns in the tehran stock exchange: an event study. Interdisciplinary Journal of Management Studies (Formerly known as Iranian Journal of Management Studies), 15(4), 835-849.