The impact of ESG disclosure on firm value: The moderating influence of board size within the Singaporean context
DOI:
https://doi.org/10.26905/afr.v9i1.16824Keywords:
Board size, ESG disclosure, Firm value, Panel data, SingaporeAbstract
This research examines the relationship between Environmental, Social, and Governance (ESG) disclosure and firm value while investigating the moderating role of board size. The sample includes 20 companies listed on the Singapore Exchange for the period 2019 to 2024, utilizing secondary data from Bloomberg. Data analysis was performed using panel data multiple linear regression via Stata 17 software. Following model selection tests, the Fixed Effect Model was implemented with robust standard errors to mitigate heteroscedasticity. ESG disclosure was evaluated both aggregately and through its individual pillars, with moderation analysis conducted by generating interaction terms between ESG metrics and board size. The empirical results demonstrate that total ESG disclosure and its constituent pillars do not significantly influence firm value. However, moderation testing reveals that board size negatively moderates the impact of total ESG, environmental, and governance disclosures on firm value, whereas no moderating effect was detected concerning the relationship between social disclosure and firm value. These findings highlight the critical importance of board size optimization in ensuring that ESG transparency effectively contributes to the enhancement of firm value.
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Aditya, M., & Hasnawati, S. (2025). The effect of ESG disclosure on firm value (Empirical study on companies listed in the IDX ESG leader index for the period 2021–2023). International Journal of Education, Social Studies, and Management (IJESSM), 5(2), 614-627. https://doi.org/10.52121/ijessm.v5i2.736
Alkhawaja, A., Hu, F., Johl, S., & Nadarajah, S. (2023). Board gender diversity, quotas, and ESG disclosure: Global evidence. International Review of Financial Analysis, 90, 102823. https://doi.org/10.1016/j.irfa.2023.102823
An, H., Ran, C., & Gao, Y. (2025). Does ESG information disclosure increase firm value? The mediation role of financing constraints in China. Research in International Business and Finance, 73, 102584. https://doi.org/10.1016/j.ribaf.2024.102584
Angela, T., & Rusmanto, T. (2025). The effect of ESG disclosure and media exposure on profitability and firm value: Evidence from Indonesia. Planning, 20(10), 4429-4442. https://doi.org/10.18280/ijsdp.201030
Ardiansyah, R., & Hersugondo, H. (2024). Hubungan ESG disclosure dengan kinerja keuangan perusahaan berperingkat PROPER di Indonesia. Jurnal Dinamika Bisnis dan Kewirausahaan, 1(1), 76-87.
Awad, A. B., Khalaf, B. A., & Afzal, A. (2023). The power of board size and gender diversity on the value of companies listed on emerging markets. Corporate Law and Governance Review, 5(2), 128–139. https://doi.org/10.22495/clgrv5i2p14
Babiker, I., Bakhit, M., Bilal, A. O. A., Abubakr, A. A. M., & Abdelraheem, A. A. E. (2025). The effect of female representation on boards on environmental, social, and governance disclosure: empirical evidence from Saudi highly polluting industries. Sustainability, 17(6), 2751. https://doi.org/10.3390/su17062751
Ben Fatma, H., & Chouaibi, J. (2023). Corporate governance and firm value: A study on European financial institutions. International Journal of Productivity and Performance Management, 72(5), 1392-1418. https://doi.org/10.1108/IJPPM-05-2021-0306
Bukari, A., Agyemang, A. O., & Bawuah, B. (2024). Assessing the moderating role of ESG performance on corporate governance and firm value in developing countries. Cogent Business & Management, 11(1), 2333941. https://doi.org/10.1080/23311975.2024.2333941
Cerar, J., Nell, P. C., & Reiche, B. S. (2021). The declining share of primary data and the neglect of the individual level in international business research. Journal of International Business Studies, 52(7), 1365-1374. https://doi.org/10.1057/s41267-021-00451-0
Cipto, N. S., & Hersugondo, H. (2024). Pengaruh ESG (Environmental, Social, and Governance) 1 terhadap kinerja dan nilai perusahaan dengan ukuran perusahaan sebagai variabel moderasi. Jurnal Ekonomi, Manajemen Akuntansi dan Perpajakan (Jemap), 7(2), 393-416. https://doi.org/10.24167/jemap.v7i2.11761
Dihardjo, J. F., & Hersugondo, H. (2023). Exploring the impact of esg disclosure, dividend payout ratio, and institutional ownership on firm value: A moderated analysis of firm size. Jurnal Ekonomi Bisnis dan Kewirausahaan (JEBIK), 12(2), 184-207. https://doi.org/10.26418/jebik.v12i2.64129
El-Deeb, M. S., Ismail, T. H., & El Banna, A. A. (2023). Does audit quality moderate the impact of environmental, social and governance disclosure on firm value? Further evidence from Egypt. Journal of Humanities and Applied Social Sciences, 5(4), 293-322. https://doi.org/10.1108/JHASS-11-2022-0155
Fadmaulida, N., & Putra, R. N. A. (2024). Environmental, social, governance disclosure, leverage and firm value of manufacturing companies listed on the Indonesian Sharia Stock Index. Journal of Accounting Inquiry, 3(1), 020-031. https://doi.org/10.14421/jai.2024.3.1.020-031
Hamdouni, A. (2025). Value creation through environmental, social, and governance (ESG) disclosures. Journal of Risk and Financial Management, 18(8), 415. https://doi.org/10.3390/jrfm18080415
Hardiningsih, P., Srimindarti, C., Anggana Lisiantara, G., & Kartika, A. (2024). How does environmental, social, governance disclosure and political connection performance affect firm value? An empirical study in Singapore. Cogent Business & Management, 11(1), 2377764. https://doi.org/10.1080/23311975.2024.2377764
Huang, W. (2024). Female board representation and firm value: International evidence. Finance Research Letters, 68, 105998. https://doi.org/10.1016/j.frl.2024.105998
Hussain, M. A., Alsayegh, M. F., & Boshnak, H. A. (2025). The role of ESG disclosure in enhancing profitability and market value: Insights from Saudi Arabia’s corporate landscape. Economics and Finance Letters, 12(2), 158–182. https://doi.org/10.18488/29.v12i2.4171
KPMG. (2022). Big shifts, small steps. KPMG. Retrieved from: https://assets.kpmg.com/content/dam/kpmg/se/pdf/komm/2022/Global-Survey-of-Sustainability-Reporting-2022.pdf
KPMG. (2024). Singapore achieves progress in sustainability reporting, outperforming global benchmarks. KPMG. Retrieved from: https://kpmg.com/sg/en/media/press-releases/2024/11/singapore-achieves-progress-in-sustainability-reporting--outperf.html
Mahmood, A., Mehmood, A., Terzani, S., De Luca, F., & Djajadikerta, H. G. (2025). The effect of ESG disclosure on firm value in the European context. Management Decision. https://doi.org/10.1108/MD-10-2024-2480
Meeprom, S., Boonyanet, W., & Tongkong, S. (2024). Relationship of ESG scores on firm performance: Moderating roles of board size and CEO duality. Journal of Infrastructure, Policy and Development, 8(7), 4403. https://doi.org/10.24294/jipd.v8i7.4403
Memon, M. A., Thurasamy, R., Ting, H., & Cheah, J. H. (2025). Purposive sampling: A review and guidelines for quantitative research. Journal of Applied Structural Equation Modeling, 9(1), 1–23. https://doi.org/10.47263/JASEM.9(1)01
Msomi, T. S., Aruwaji, M. A., & Msiza, D. C. (2025). The impact of environmental, social, and governance disclosure on the firm value of non-financial firms listed in South Africa. Risks, 13(12), 242. https://doi.org/10.3390/risks13120242
Muliani, F., Saumi, F., Amelia, A., & Amalia, R. (2025). Determinants of Dengue Hemorrhagic fever in Aceh: A panel regression approach. ZERO: Jurnal Sains, Matematika dan Terapan, 9(3), 794-806. https://doi.org/10.30829/zero.v9i3.26784
Musa, A. M. H., Alqubaysi, R., & Alqahtani, H. A. (2025). The effect of board characteristics on ESG commitment in Saudi Arabia: How diversity, independence, size, and expertise shape corporate sustainability practices. Sustainability, 17(12), 5552. https://doi.org/10.3390/su17125552
Mutiah, S., & Rusmanto, T. (2023). Impact of Environmental, Social, and Governance (ESG) disclosures on firm value: Study of 5 ASEAN Countries. Economic Affairs, 68(3), 1433-1439. https://doi.org/10.46852/0424-2513.3.2023.11
Njoku, O. E., & Lee, Y. (2025). Financial strategies driving market performance during recession in Nigerian manufacturing firms. Journal of Risk and Financial Management, 18(2), 81. https://doi.org/10.3390/jrfm18020081
Omenihu, C. M., Abdrakhmanova, M., & Koufopoulos, D. N. (2025). Board gender diversity and environmental, social, and governance (ESG) disclosure in developed countries. Administrative Sciences, 15(4), 141. https://doi.org/10.3390/admsci15040141
P., F., & Busru, S. A. (2021). CSR disclosure and firm performance: evidence from an emerging market. Corporate Governance, 21(4), 553–568. https://doi.org/10.1108/CG-05-2020-0201
Rohendi, H., Ghozali, I., & Ratmono, D. (2024). Environmental, social, and governance (ESG) disclosure and firm value: the role of competitive advantage as a mediator. Cogent Business & Management, 11(1), 2297446. https://doi.org/10.1080/23311975.2023.2297446
Singapore Exchange. (n.d.). Sustainability reporting. SGX Group. Retrieved from: https://www.sgx.com/sustainable-finance/sustainability-reporting
Singapore Exchange. (2023). Starting with a Common Set of Core ESG Metrics. SGX Group. Retrieved from: https://api2.sgx.com/sites/default/files/2023-05/SGX%20Core%20ESG%20Metrics_for%20website%20%28updated%20Apr2023%29.pdf
Slater, P., & Hasson, F. (2025). Quantitative data quality assurance, analysis and presentation. Journal of Psychiatric and Mental Health Nursing, 32(3), 723-727. https://doi.org/10.1111/jpm.13143
Sundarasen, S., Kumar, R., Tanaraj, K., Alsmady, A. A., & Rajagopalan, U. (2024). From board diversity to disclosure: A comprehensive review on board dynamics and ESG reporting. Research in Globalization, 9, 100259. https://doi.org/10.1016/j.resglo.2024.100259
Tamararizki, V., Abdillah, M. R., Anita, R., & Zakaria, N. B. (2026). Women on board and firm value: The role of risk and philanthropy. Corporate Governance: The International Journal of Business in Society, 26(2), 438-450. https://doi.org/10.1108/CG-08-2024-0407
Triwacananingrum, W., & Probohudono, A. N. (2024). Does business ethics disclosure contribute to ESG disclosure and ESG performance on firm value. Journal of Ecohumanism, 3(4), 816-833. https://doi.org/10.62754/joe.v3i4.3572
Yakob, N. A., & Abu Hasan, N. (2021). Exploring the interaction effects of board meetings on information disclosure and financial performance in public listed companies. Economies, 9(4), 139. https://doi.org/10.3390/economies9040139
Zheng, C., Mannan Khan, M. A., Rahman, M. M., Moudud-Ul-Huq, S., & Rahman, M. S. (2025). ESG performance and financial stability: A bibliometric and meta-analysis. Sage Open, 15(4), 21582440251381772. https://doi.org/10.1177/21582440251381772
Z/Yen Group, & China Development Institute. (2026). The global financial centres index 39. Z/Yen Group, & China Development Institute. Retrieved from: https://www.longfinance.net/media/documents/GFCI_39_Report_2026.03.26_v1.1.pdf
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