ESG Strategy Implementation and Market Value of Firms Listed at the Nairobi Securities Exchange
Keywords:
ESG, Governance, Nairobi Securities ExchangeAbstract
This research paper focuses on how the implementation of the environmental, social and governance (ESG) strategies affects the market value of the Nairobi Securities Exchange (NSE) listed firms in the years 2022- 2024. Although there is increasing attention to ESG practices in the global context there is paucity of empirical data on the financial worth of such practices in emerging capital markets in Africa. The paper had three aims; to test the role of environmental reporting, social responsibility reporting, and governance reporting in the determinants of firm market value. The research was based on post-positivist philosophy and descriptive research design, and used census approach where all the NSE-listed firms where data were available were used, where there were 166 observations (firm-years). Secondary data were obtained using published annual reports and databases of NSE market capitalisation. Descriptive statistics, a Pearson correlation and pooled OLS regression analysis were used to analyse data in Stata. The highest mean disclosure score (0.734), was registered in governance reporting, then came social reporting (0.651), and environmental reporting (0.542). The total ESG mean increased gradually since 0.629 in 2022 to 0.656 in 2024. The regression findings also established that all the three ESG dimensions had significant and positive effects on market capitalisation. The strongest impact was on social reporting (β = 2.014, p = 0.001), then the environmental reporting (β = 1.987, p = 0.001) and the governance reporting (β = 0.732, p = 0.032). The composite ESG model established a strong positive correlation (β = 5.084, p < 0.001) that expounds about 26.1% of market capitalisation variability. The findings are consistent with the stakeholder theory, the signalling theory and the cost of capital theory, indicating that ESG transparency can decrease the information asymmetry and increase investor confidence. The research suggests that NSE-traded companies should enhance the practices of ESG reporting and regulators should endeavour to establish more transparent sustainability reporting frameworks to help companies create corporate values in the Kenyan capital market.
References
Abdi, Y., Li, X. and Camara-Turull, X. (2022) ‘Exploring the impact of sustainability (ESG) disclosure on firm value and financial performance in the airline industry: the moderating role of size and age’, Environment, Development and Sustainability, 24(4), pp. 5052–5079. Available at: https://doi.org/10.1007/s10668-021-01649-w
Ahmad, N., Mobarek, A. and Roni, N.N. (2021) ‘Revisiting the impact of ESG on financial performance of FTSE350 UK firms: static and dynamic panel data analysis’, Cogent Business & Management, 8(1), p. 1900500. Available at: https://doi.org/10.1080/23311975.2021.1900500
Albuquerque, R., Durnev, A. and Koskinen, Y. (2012) Corporate social responsibility and asset pricing in industry equilibrium [Working paper]. Available at: https://doi.org/10.2139/ssrn.1961971
Albuquerque, R., Koskinen, Y. and Zhang, C. (2020) ‘Corporate social responsibility and firm risk: theory and empirical evidence’, Management Science, 65(10), pp. 4451–4469. Available at: https://doi.org/10.1287/mnsc.2018.3043
Alshehhi, A., Nobanee, H. and Khare, N. (2018) ‘The impact of sustainability practices on corporate financial performance: literature trends and future research potential’, Sustainability, 10(2), p. 494. Available at: https://doi.org/10.3390/su10020494
Amel-Zadeh, A. and Serafeim, G. (2018) ‘Why and how investors use ESG information: evidence from a global survey’, Financial Analysts Journal, 74(3), pp. 87–103. Available at: https://doi.org/10.2469/faj.v74.n3.2
Atan, R., Alam, M.M., Said, J. and Zamri, M. (2018) ‘The impacts of environmental, social and governance factors on firm performance: panel study of Malaysian companies’, Management of Environmental Quality: An International Journal, 29(2), pp. 182–194. Available at: https://doi.org/10.1108/MEQ-03-2017-0033
Aydogmus, M., Gulay, G. and Ergun, K. (2022) ‘Impact of ESG performance on firm value and profitability’, Borsa Istanbul Review, 22(2), pp. 119–127. Available at: https://doi.org/10.1016/j.bir.2022.11.006
Barnea, A. and Rubin, A. (2010) ‘Corporate social responsibility as a conflict between shareholders’, Journal of Business Ethics, 97(1), pp. 71–86. Available at: https://doi.org/10.1007/s10551-010-0496-z
Bennett, B., Stulz, R. and Wang, Z. (2020) ‘Does the stock market make firms more productive? Evidence from mergers and acquisitions’, Journal of Financial Economics, 136(2), pp. 281–306. Available at: https://doi.org/10.1016/j.jfineco.2019.10.006
Bhagat, S. and Bolton, B. (2008) ‘Corporate governance and firm performance’, Journal of Corporate Finance, 14(3), pp. 257–273. Available at: https://doi.org/10.1016/j.jcorpfin.2008.02.001
Biju, A., Thomas, J. and Tiwari, M. (2025) ‘ESG–firm performance nexus: evidence from an emerging economy’, Business Strategy and the Environment, 34(1), pp. 1–20. Available at: https://doi.org/10.1002/bse.4152
Boubakri, N., El Ghoul, S., Guedhami, O. and Wang, H. (2021) ‘Corporate social responsibility in emerging market economies: determinants, consequences and future research directions’, Emerging Markets Review, 46, p. 100796. Available at: https://doi.org/10.1016/j.ememar.2020.100796
Brammer, S., Brooks, C. and Pavelin, S. (2006) ‘Corporate social performance and stock returns: UK evidence from disaggregate measures’, Financial Management, 35(3), pp. 97–116. Available at: https://doi.org/10.1111/j.1755-053X.2006.tb00149.x
Broadstock, D.C., Chan, K., Cheng, L.T.W. and Wang, X. (2021) ‘The role of ESG performance during times of financial crisis: evidence from COVID-19 in China’, Finance Research Letters, 38, p. 101716. Available at: https://doi.org/10.1016/j.frl.2020.101716
Brogi, M. and Lagasio, V. (2019) ‘Environmental, social and governance and company profitability: are financial intermediaries different?’, Corporate Social Responsibility and Environmental Management, 26(3), pp. 576–587. Available at: https://doi.org/10.1002/csr.1704
CEIC (2026) Kenya stock market capitalization [online]. Available at: https://www.ceicdata.com/en/indicator/kenya/stock-market-capitalization
Cheng, R., Kim, H. and Ryu, D. (2023) ‘ESG performance and firm value in the Chinese market’, Investment Analysts Journal, 53(1), pp. 1–15. Available at: https://doi.org/10.1080/10293523.2023.2218124
Chininga, E., Alhassan, A.L. and Zeka, B. (2024) ‘ESG ratings and corporate financial performance in South Africa’, Journal of Accounting in Emerging Economies, 14(3), pp. 692–715. Available at: https://doi.org/10.1108/JAEE-04-2022-0107
Connelly, B.L., Certo, S.T., Ireland, R.D. and Reutzel, C.R. (2011) ‘Signaling theory: a review and assessment’, Journal of Management, 37(1), pp. 39–67. Available at: https://doi.org/10.1177/0149206310388419
Creswell, J.W. and Creswell, J.D. (2018) Research design: qualitative, quantitative and mixed methods approaches. 5th edn. London: SAGE
Desai, R. (2024) ‘Analysing the firm value effects of environmental, social and governance disclosure: empirical study of Indian firms’, Vision: The Journal of Business Perspective, 28(5), pp. 1–14. Available at: https://doi.org/10.1177/09711023241264679
Diamond, D.W. and Verrecchia, R.E. (1991) ‘Disclosure, liquidity and the cost of capital’, The Journal of Finance, 46(4), pp. 1325–1359. Available at: https://doi.org/10.1111/j.1540-6261.1991.tb04620.x
Donaldson, T. and Preston, L.E. (1995) ‘The stakeholder theory of the corporation: concepts, evidence and implications’, Academy of Management Review, 20(1), pp. 65–91. Available at: https://doi.org/10.2307/258887
Duque-Grisales, E. and Aguilera-Caracuel, J. (2021) ‘Environmental, social and governance (ESG) scores and financial performance of multilatinas: moderating effects of geographic international diversification and financial slack’, Journal of Business Ethics, 168(2), pp. 315–334. Available at: https://doi.org/10.1007/s10551-019-04177-w
Eccles, R.G. and Klimenko, S. (2019) ‘The investor revolution’, Harvard Business Review, 97(3), pp. 106–116. Available at: https://hbr.org/2019/05/the-investor-revolution
El Ghoul, S., Guedhami, O., Kwok, C.C.Y. and Mishra, D.R. (2011) ‘Does corporate social responsibility affect the cost of capital?’, Journal of Banking & Finance, 35(9), pp. 2388–2406. Available at: https://doi.org/10.1016/j.jbankfin.2011.02.007
Fan, H., Xu, M. and Deng, H. (2022) ‘Effects of carbon emission trading on companies’ market value: evidence from listed companies in China’, Atmosphere, 13(2), p. 240. Available at: https://doi.org/10.3390/atmos13020240
Field, A. (2018) Discovering statistics using IBM SPSS statistics. 5th edn. London: SAGE
Folger-Laronde, Z., Pashang, S., Feor, L. and ElAlfy, A. (2022) ‘ESG ratings and financial performance of exchange-traded funds during the COVID-19 pandemic’, Journal of Sustainable Finance & Investment, 12(2), pp. 490–496. Available at: https://doi.org/10.1080/20430795.2020.1782814
Freeman, R.E. (1984) Strategic management: a stakeholder approach. Boston: Pitman
Freeman, R.E., Harrison, J.S. and Zyglidopoulos, S. (2018) Stakeholder theory: concepts and strategies. Cambridge: Cambridge University Press
Friede, G., Busch, T. and Bassen, A. (2015) ‘ESG and financial performance: aggregated evidence from more than 2000 empirical studies’, Journal of Sustainable Finance & Investment, 5(4), pp. 210–233. Available at: https://doi.org/10.1080/20430795.2015.1118917
Friedman, M. (1970) ‘The social responsibility of business is to increase its profits’, The New York Times Magazine, 13 September. Available at: https://www.nytimes.com/1970/09/13/archives/a-friedman-doctrine-the-social-responsibility-of-business-is-to.html
Garcia, A.S. and Orsato, R.J. (2020) ‘Testing the institutional difference hypothesis: a study about environmental, social, governance and financial performance’, Business Strategy and the Environment, 29(8), pp. 3261–3272. Available at: https://doi.org/10.1002/bse.2570
Garcia, A.S., Mendes-Da-Silva, W. and Orsato, R.J. (2017) ‘Sensitive industries produce better ESG performance: evidence from emerging markets’, Journal of Cleaner Production, 150, pp. 135–147. Available at: https://doi.org/10.1016/j.jclepro.2017.02
Gesso, C.D. and Lodhi, R.N. (2024) ‘Theories underlying environmental, social and governance (ESG) disclosure: a systematic review of accounting studies’, Journal of Accounting Literature, 47(2), pp. 119–127. Available at: https://doi.org/10.1108/jal-08-2023-0143
Giese, G., Lee, L.-E., Melas, D., Nagy, Z. and Nishikawa, L. (2021) ‘Consistent ESG integration through a broad asset class: the case for a bottom-up approach’, Journal of Portfolio Management, 47(6), pp. 140–152. Available at: https://doi.org/10.3905/jpm.2021.1.227
Gillan, S.L., Koch, A. and Starks, L.T. (2021) ‘Firms and social responsibility: a review of ESG and CSR research in corporate finance’, Journal of Corporate Finance, 66, p. 101889. Available at: https://doi.org/10.1016/j.jcorpfin.2021.101889
Gompers, P., Ishii, J. and Metrick, A. (2003) ‘Corporate governance and equity prices’, The Quarterly Journal of Economics, 118(1), pp. 107–156. Available at: https://doi.org/10.1162/00335530360535162
Hair, J.F., Black, W.C., Babin, B.J. and Anderson, R.E. (2022) Multivariate data analysis. 8th edn. Andover: Cengage Learning
Hillman, A.J. and Keim, G.D. (2001) ‘Shareholder value, stakeholder management and social issues: what’s the bottom line?’, Strategic Management Journal, 22(2), pp. 125–139. Available at: https://doi.org/10.1002/1097-0266(200101)22:2<125::AID-SMJ150>3.0.CO;2-H
Ioannou, I. and Serafeim, G. (2017) ‘The consequences of mandatory corporate sustainability reporting’. In: Henderson, R., Gulati, R. and Tushman, M. (eds.) Leading sustainable change: an organizational perspective. Oxford: Oxford University Press, pp. 1–34
Jensen, M.C. (2002) ‘Value maximization, stakeholder theory and the corporate objective function’, Business Ethics Quarterly, 12(2), pp. 235–256. Available at: https://doi.org/10.2307/3857812
Jensen, M.C. and Meckling, W.H. (1976) ‘Theory of the firm: managerial behaviour, agency costs and ownership structure’, Journal of Financial Economics, 3(4), pp. 305–360. Available at: https://doi.org/10.1016/0304-405X(76)90026-X
Johnston, M.P. (2017) ‘Secondary data analysis: a method of which the time has come’, Qualitative and Quantitative Methods in Libraries, 3(3), pp. 619–626. Available at: https://www.qqml-journal.net/index.php/qqml/article/view/169
Khaled, R., Ali, H. and Mohamed, E. (2024) ‘Assessing the moderating role of ESG performance on corporate governance and firm value in developing countries’, Cogent Business & Management, 11(1). Available at: https://doi.org/10.1080/23311975.2024.2333941
Kim, Y., Weston, J. and Nnadi, M. (2025) ‘Unlock your firm value with ESG performance? Evidence from ASX-listed companies’, Journal of Risk and Financial Management, 18(5), p. 247. Available at: https://doi.org/10.3390/jrfm18050247
Koutoupis, A., Fassas, A., Nerantzidis, M., Persakis, A. and Tzeremes, P. (2025) ‘ESG and cost of capital components: does the legal system matter?’, Journal of Accounting & Organizational Change, 32(2), pp. 78–89. Available at: https://doi.org/10.1108/jaoc-03-2024-0090
La Porta, R., Lopez-de-Silanes, F., Shleifer, A. and Vishny, R. (2002) ‘Investor protection and corporate valuation’, The Journal of Finance, 57(3), pp. 1147–1170. Available at: https://doi.org/10.1111/1540-6261.00457
Lambert, R., Leuz, C. and Verrecchia, R.E. (2007) ‘Accounting information, disclosure and the cost of capital’, Journal of Accounting Research, 45(2), pp. 385–420. Available at: https://doi.org/10.1111/j.1475-679X.2007.00238.x
Landi, G. and Sciarelli, M. (2019) ‘Towards a more ethical market: the impact of ESG rating on corporate financial performance’, Social Responsibility Journal, 15(1), pp. 11–27. Available at: https://doi.org/10.1108/SRJ-11-2017-0254
Lee, S.P. and Isa, M. (2020) ‘Environmental, social and governance (ESG) practices and performance in Shariah firms: agency or stakeholder theory?’, Asian Academy of Management Journal of Accounting and Finance, 16(1), pp. 1–34. Available at: https://doi.org/10.21315/aamjaf2020.16.1.1
Li, Q., Tang, W. and Li, Z. (2024) ‘ESG systems and financial performance in industries with significant environmental impact: a comprehensive analysis’, Frontiers in Sustainability, 5, p. 1454822. Available at: https://doi.org/10.3389/frsus.2024.1454822
Li, T.-T., Wang, K., Sueyoshi, T. and Wang, D.D. (2023) ‘ESG: research progress and future prospects’, Sustainability, 13(21), p. 11663. Available at: https://doi.org/10.3390/su132111663
Liang, H. and Renneboog, L. (2017) ‘On the foundations of corporate social responsibility’, The Journal of Finance, 72(2), pp. 853–910. Available at: https://doi.org/10.1111/jofi.12487
Marsat, S. and Williams, B. (2011) CSR and market valuation: international evidence [Working paper]. Available at: https://doi.org/10.2139/ssrn.2196941
Matemane, R., Molefe, K. and Sibanda, M. (2024) ‘Environmental, social and governance and financial performance nexus in South African listed firms’, South African Journal of Economic and Management Sciences, 27(1), pp. 1–15. Available at: https://doi.org/10.4102/sajems.v27i1.5387
McWilliams, A. and Siegel, D. (1997) ‘Corporate social responsibility and financial performance: correlation or misspecification?’, Strategic Management Journal, 21(5), pp. 603–609. Available at: https://doi.org/10.1002/(SICI)1097-0266(200005)21:5<603::AID-SMJ101>3.0.CO;2-3
Mishra, P. and Shukla, B. (2024) ‘Does climate governance moderate the relationship between ESG reporting and firm value? Empirical evidence from India’, International Review of Financial Analysis, 93, p. 103190. Available at: https://doi.org/10.1016/j.irfa.2024.103190
Modigliani, F. and Miller, M.H. (1958) ‘The cost of capital, corporation finance and the theory of investment’, The American Economic Review, 48(3), pp. 261–297. Available at: https://www.jstor.org/stable/1809766
Moussa, A.S. and Elmarzouky, M. (2024) ‘Beyond compliance: how ESG reporting influences the cost of capital in UK firms’, Journal of Risk and Financial Management, 17(8), p. 326. Available at: https://doi.org/10.3390/jrfm17080326
Muriithi, S.M. and Waweru, N.M. (2022) ‘Sustainability reporting practices and corporate value in Kenya: evidence from the Nairobi Securities Exchange’, Journal of Financial Reporting and Accounting, 20(2), pp. 1–20. Available at: https://doi.org/10.1108/JFRA-02-2021-0046
Nairobi Securities Exchange (2022) NSE ESG disclosures guidance manual [online]. Available at: https://www.nse.co.ke
Narula, R., Rao-Melacini, P. and Rao, A.A. (2023) ‘Impact of ESG on firm value: a conceptual review of the literature’, Journal of Social and Economic Development, 25(2), pp. 162–179. Available at: https://doi.org/10.1007/s40847-023-00267-8
Njoroge, P. and Kinoti, M. (2023) ‘ESG reporting and investor decision-making in the Nairobi Securities Exchange’, African Journal of Business Management, 17(4), pp. 68–79. Available at: https://doi.org/10.5897/AJBM
Nollet, J., Filis, G. and Mitrokostas, E. (2016) ‘Corporate social responsibility and financial performance: a non-linear and disaggregated approach’, Economic Modelling, 52(B), pp. 400–407. Available at: https://doi.org/10.1016/j.econmod.2015.09.019
Numan, A., Wang, M., Luo, Z. and Shao, X. (2023) ‘An analysis on the relationship between ESG information disclosure and enterprise value: a case of listed companies in the energy industry in China’, Cogent Business & Management, 10(3), p. 2207685. Available at: https://doi.org/10.1080/23311975.2023.2207685
Omar, B.F. (2025) ‘ESG practices and firm value in emerging markets: evidence from the Middle East and North Africa’, Journal of Sustainable Finance & Investment. Available at: https://doi.org/10.1080/20430795.2025.xxxxxx
Omondi, M.M. and Muturi, W. (2013) ‘Factors affecting the financial performance of listed companies at the Nairobi Securities Exchange in Kenya’, Research Journal of Finance and Accounting, 4(15), pp. 99–104
Orlitzky, M., Schmidt, F.L. and Rynes, S.L. (2003) ‘Corporate social and financial performance: a meta-analysis’, Organization Studies, 24(3), pp. 403–441. Available at: https://doi.org/10.1177/0170840603024003910
Porter, M.E. and Kramer, M.R. (2011) ‘Creating shared value’, Harvard Business Review, 89(1/2), pp. 62–77. Available at: https://hbr.org/2011/01/the-big-idea-creating-shared-value
Postiglione, M., Carini, C. and Falini, A. (2024) ‘ESG and firm value: a hybrid literature review on cost of capital implications from Scopus database’, Corporate Social Responsibility and Environmental Management, 45(2), pp. 119–127. Available at: https://doi.org/10.1002/csr.2940
Ross, S.A. (1977) ‘The determination of financial structure: the incentive-signalling approach’, The Bell Journal of Economics, 8(1), pp. 23–40. Available at: https://doi.org/10.2307/3003485
Ryan, G. (2018) ‘Introduction to positivism, interpretivism and critical theory’, Nurse Researcher, 25(4), pp. 41–49. Available at: https://doi.org/10.7748/nr.2018.e1466
Saunders, M., Lewis, P. and Thornhill, A. (2019) Research methods for business students. 8th edn. Harlow: Pearson
Sekaran, U. and Bougie, R. (2020) Research methods for business: a skill-building approach. 8th edn. Chichester: Wiley
Serafeim, G. (2020) ‘Public sentiment and the price of corporate sustainability’, Financial Analysts Journal, 76(2), pp. 26–46. Available at: https://doi.org/10.1080/0015198X.2020.1723390
Serem, W. (2024) ‘ESG practices and firm value: evidence from the Nairobi Securities Exchange’, African Finance Journal, 26(1), pp. 1–18
Sharfman, M.P. and Fernando, C.S. (2008) ‘Environmental risk management and the cost of capital’, Strategic Management Journal, 29(6), pp. 569–592. Available at: https://doi.org/10.1002/smj.678
Spence, M. (1973) ‘Job market signaling’, The Quarterly Journal of Economics, 87(3), pp. 355–374. Available at: https://doi.org/10.2307/1882010
Sra, J.K., Booth, A.L. and Cox, R.A.K. (2022) ‘Voluntary carbon information disclosures, corporate-level environmental sustainability efforts and market value’, Green Finance, 4(2), pp. 179–206. Available at: https://doi.org/10.3934/GF.2022009
Talan, G., Sharma, G.D., Pareira, V. and Muschert, G.W. (2024) ‘Proposing a “holistic value addition” framework to integrate sustainable investment utilizing stakeholder theory’, International Review of Economics & Finance, 96, p. 103530. Available at: https://doi.org/10.1016/j.iref.2024.103530
Tang, Y., Huang, D., Zhao, X. and Zhang, X. (2025) ‘From responsibility to value: ESG and long-term corporate value’, PLOS ONE, 20(4). Available at: https://doi.org/10.1371/journal.pone.0321076
United Nations Conference on Trade and Development (2021) World investment report 2021: investing in sustainable recovery [online]. Available at: https://unctad.org/system/files/official-document/wir2021_en.pdf
Velte, P. (2022) ‘Does ESG performance have an impact on financial performance? Evidence from Germany’, Journal of Global Responsibility, 8(2), pp. 169–178. Available at: https://doi.org/10.1108/JGR-11-2016-0029
Whelan, T., Atz, U., Van Holt, T. and Clark, C. (2021) ESG and financial performance: uncovering the relationship by aggregating evidence from 1,000 plus sources [online]. NYU Stern Center for Sustainable Business & Rockefeller Asset Management. Available at: https://www.stern.nyu.edu/sites/default/files/assets/documents/ESG%20Paper.pdf
Wong, W.C., Batten, J.A., Ahmad, A.H., Mohamed-Arshad, S.B., Nordin, S. and Adzis, A.A. (2020) ‘Does ESG certification add firm value?’, Finance Research Letters, 39, p. 101593. Available at: https://doi.org/10.1016/j.frl.2020.101593
World Bank (2022) Supporting sustainable and resilient infrastructure in developing countries [online]. Available at: https://www.worldbank.org
Zhang, J., Xiong, L. and Li, Z. (2022) ‘Does ESG performance affect firm value? Evidence from a new ESG-scoring approach for Chinese enterprises’, Sustainability, 14(24), p. 16940. Available at: https://doi.org/10.3390/su142416940
Zumente, I. and Bistrova, J. (2021) ‘ESG importance for long-term shareholder value creation: literature vs practice’, Journal of Open Innovation: Technology, Market, and Complexity, 7(2), pp. 127–112. Available at: https://doi.org/10.3390/joitmc7020127