THE RELATIONSHIP BETWEEN AUDIT COMMITTEE STRUCTURE AND FINANCIAL PERFORMANCE: A PANEL DATA ANALYSIS OF BIST-100 FIRMS

Yıl 2026, Sayı: 34 , 138 - 151 , 16.02.2026

Yavuz Kılınç

https://doi.org/10.58348/denetisim.1788886

https://izlik.org/JA23GG93KF

Öz

This study examines the effect of audit committee characteristics on firms’ financial performance. The existence of inconsistent findings in the literature, despite the expectation that audit committees will strengthen financial reporting processes, constitutes the main motivation of the study. In the research, 156 firm-year observations belonging to 39 firms listed in the BIST-100 index during the 2021–2024 period were analyzed using panel data methodology. The Breusch–Pagan LM and Hausman tests indicated that the fixed effects model should be preferred, and the findings were further supported by the Driscoll–Kraay robustness test. According to the results obtained, audit committee size (ACSIZE) is positively associated with financial performance, although this relationship is significant only at the 10% level in the Driscoll–Kraay estimation. The proportion of female members (ACGENDER) is not significant in either model. While the number of meetings (ACOPL) is not significant in the classical fixed effects estimation, it has a negative and significant effect on financial performance at the 5% level in the Driscoll–Kraay results. In addition, audit fees (LNAUDFEE) have a negative and strong effect at the 1% level in all models. Similarly, leverage (LEV) is a significant variable that negatively affects financial performance in both models. Firm size (LNFSIZE) is not significant. Working with a Big4 auditor (AUDFIRM) yields positive and statistically significant results at the 5% level in the classical fixed effects model, whereas it loses its significance in the Driscoll–Kraay estimation. Overall, the findings indicate that the effects of audit committee characteristics on financial performance are limited and model-dependent, whereas audit costs and leverage levels are determinants of firms’ profitability. Furthermore, the fact that the Big4 effect is significant only in the standard FE model suggests that the audit quality–performance relationship does not exhibit stability within the sample.

Anahtar Kelimeler

Audit Committee , Financial Performance , Auditing

DENETİM KOMİTESİ YAPISI VE FİNANSAL PERFORMANS ARASINDAKİ İLİŞKİ: BIST-100 FİRMALARI ÜZERİNE BİR PANEL VERİ ANALİZİ

https://izlik.org/JA23GG93KF

Öz

Bu çalışma, denetim komitesi özelliklerinin firmaların finansal performansı üzerindeki etkisini incelemektedir. Denetim komitelerinin finansal raporlama süreçlerini güçlendireceği yönündeki beklentilere rağmen literatürde tutarsız sonuçların bulunması, çalışmanın temel motivasyonunu oluşturmuştur. Araştırmada, 2021–2024 döneminde BIST-100 endeksinde yer alan 39 firmaya ait 156 firma-yıl gözlemi panel veri yöntemiyle analiz edilmiştir. Breusch–Pagan LM ve Hausman testleri, sabit etkiler modelinin tercih edilmesi gerektiğini göstermiş; bulgular ayrıca Driscoll–Kraay sağlamlık testiyle desteklenmiştir. Elde edilen sonuçlara göre, denetim komitesi büyüklüğü (ACSIZE) finansal performansla pozitif yönde ilişkili olmakla birlikte bu ilişki sadece Driscoll–Kraay tahmininde %10 düzeyinde anlamlıdır. Kadın üye oranı (ACGENDER) her iki modelde de anlamlı değildir. Toplantı sayısı (ACOPL) klasik sabit etkiler tahmininde anlamlı bulunmazken, Driscoll–Kraay sonuçlarında finansal performans üzerinde %5 düzeyinde negatif ve anlamlı bir etkiye sahiptir. Bunun yanında denetim ücretleri (LNAUDFEE) tüm modellerde %1 düzeyinde negatif ve güçlü bir etkiye sahiptir. Benzer şekilde kaldıraç oranı (LEV), her iki modelde de finansal performansı negatif yönde etkileyen anlamlı bir değişkendir. Firma büyüklüğü (LNFSIZE) anlamlı değildir. Big4 denetçisiyle çalışmak (AUDFIRM) klasik sabit etkiler modelinde %5 düzeyinde pozitif ve istatistiki olarak anlamlı sonuç verirken, Driscoll–Kraay tahmininde anlamlılığını kaybetmektedir. Genel olarak bulgular, denetim komitesi özelliklerinin finansal performans üzerindeki etkilerinin sınırlı ve modele duyarlı olduğunu; buna karşılık denetim maliyetlerinin ve borçluluk düzeyinin firmaların kârlılığında belirleyici olduğunu göstermektedir. Ayrıca Big4 etkisinin yalnızca standart FE modelinde anlamlı çıkması, denetim kalitesi–performans ilişkisinin örneklemde istikrar göstermediğine işaret etmektedir.

Anahtar Kelimeler

Denetim Komitesi , Finansal Performans , Denetim

Kaynakça

• Ahmed, M. M. A., Hassan, D. K. A. E. S. A., & Magar, N. H. A. (2024). The moderating role of board gender diversity on the relationship between audit committee characteristics and financial performance: evidence from Egypt. Journal of Financial Reporting and Accounting. https://doi.org/10.1108/JFRA-12-2023-0746
• Al-Ahdal, W. M., & Hashim, H. A. (2022). Impact of audit committee characteristics and external audit quality on firm performance: evidence from India. Corporate Governance: The International Journal of Business in Society, 22(2), 424-445.
• Aldamen, H., Duncan, K., Kelly, S., McNamara, R., & Nagel, S. (2012). Audit committee characteristics and firm performance during the global financial crisis. Accounting & finance, 52(4), 971-1000.
• Al-Zaimoor, N., Desoky, A., & Al-Fadhel, H. (2024). The impact of audit committee features on firm performance–empirical evidence from GCC countries. Polish Journal of Management Studies, 29.
• Almaqoushi, W., & Powell, R. (2021). Audit committee quality indices, reporting quality and firm value. Journal of Business Finance & Accounting, 48(1-2), 185-229.
• Arfamaini, R., & Soewarno, N. (2022). The Role of Audit Committee on Firm Value and Financial Performance of Indonesian Manufacturing. Quality - Access to Success, 23(191), 322-327. https://doi.org/10.47750/QAS/23.191.36
• Ashari, S., & Krismiaji, K. (2019). Audit committee characteristics and financial performance: Indonesian evidence. Equity, 22(2), 139-152.
• Bazhair, A. H. (2022). Audit committee attributes and financial performance of Saudi non-financial listed firms. Cogent Economics & Finance, 10(1), 2127238.
• Bunyaminu, A., Yakubu, I. N., & Oumarou, S. (2025). The impact of board attributes and ownership concentration on firm market value: empirical evidence from an emerging market. Cogent Business & Management, 12(1), 2437147.
• Campbell, K., & Mínguez-Vera, A. (2008). Gender diversity in the boardroom and firm financial performance. Journal of business ethics, 83(3), 435-451.
• Cengiz, S., & Tosunoğlu, B. (2018). Denetim komitesi özelliklerinin firma performansı üzerine etkisi: ampirik bir araştırma. Ida Academia Muhasebe ve Maliye Dergisi, 1(2), 1-20.
• Chan, J. Y. L., Leow, S. M. H., Bea, K. T., Cheng, W. K., Phoong, S. W., Hong, Z. W., & Chen, Y. L. (2022). Mitigating the multicollinearity problem and its machine learning approach: a review. Mathematics, 10(8), 1283. https://doi.org/10.3390/math10081283.
• Chan, K. C., & Li, J. (2008). Audit committee and firm value: Evidence on outside top executives as expert-independent directors. Corporate Governance: An International Review, 16(1). https://doi.org/10.1111/j.1467-8683.2008.00662.x
• Chijoke-Mgbame, A. M., Boateng, A., & Mgbame, C. O. (2020). Board gender diversity, audit committee and financial performance: evidence from Nigeria. Accounting Forum, 44(3), 262-286. https://doi.org/10.1080/01559982.2020.1766280
• Doğan, M. (2018). Kurumsal yönetimin teorik temelleri. Uluslararası Yönetim Akademisi Dergisi, 1(1), 84-96. El-Deeb, M. S., Alarabi, Y., & Mohamed, A. (2024). The role of audit committee characteristics in improving the risk disclosure of companies examining the moderating role of audit quality. Future Business Journal, 10(1), 130.
• Ercan, T., Bekci, İ., & Köse, E. (2025). Denetim komitesi özellikleri ve denetim kalitesi ile firma performansı ilişkisi. Muhasebe ve Denetime Bakış, 25(76), 67-80.
• Ermawati, N., & Soewarno, N. (2024). The effect of the sex diversity of the board of commissioners on firm performance and the role of the ethnic background of president commissioners. Cogent Business & Management, 11(1), 2319115.
• Grau, A., & Bel, I. (2022). Do board subcommittees boost European firm value? The moderating role of gender diversity on boards. Business Ethics, the Environment & Responsibility, 31(4), 1014-1039.
• Haddad, A., El Ammari, A., & Bouri, A. (2021). Impact of audit committee quality on the financial performance of conventional and Islamic banks. Journal of Risk and Financial Management, 14(4), 176.
• Jensen, M. C., & Meckling, W. H. (1976). Theory of the firm: Managerial behavior, agency costs and ownership structure. Journal of Financial Economics, 3(4), 305-360.
• Kallamu, B. S., & Saat, N. A. M. (2015). Audit committee attributes and firm performance: evidence from Malaysian finance companies. Asian review of accounting, 23(3), 206-231.
• Karayel, M., & Doğan, M. (2014). Yönetim kurulunda cinsiyet çeşitliliği ve finansal performans ilişkisi: BİST 100 şirketlerinde bir araştırma. Süleyman Demirel Üniveristesi İktisadi ve İdari Bilimler Dergisi, 19(2), 75-88.
• Kılınç, Y., & Oruç, E. (2025). Asimetrik maliyet davranışının BIST gayrimenkul yatırım ortaklığı (gyo) sektöründe incelenmesi: bir panel veri analizi. Mali Çözüm, 35(191), 1471-1489.
• Kobal, H. Y., & Ataman, G. (2018). Vekalet Teorisi ve Kaynak Bağımlılığı Teorisi Bağlamında, Yönetim Kurulunun Yapısal Özellikleri İle Finansal Kaldıraç ve Karlılık Oranları Arasındaki İlişki: Halka Açık Gıda Şirketleri Üzerinde Bir Araştırma (2005-2016 Dönemi). Öneri Dergisi, 13(50), 187-210.
• Kuzey, C., Al-Shaer, H., Uyar, A., & Karaman, A. S. (2024). Do board monitoring and audit committee quality help risky firms reduce CSR controversies?. Review of Quantitative Finance and Accounting, 63(3), 1007-1045.
• Mardini, G. H. (2025). The impact of boards of directors’ and audit committees’ characteristics on corporate innovation: empirical evidence from the GCC countries. Journal of Accounting in Emerging Economies.
• Mishra, G., & Raithatha, M. (2024). Does the presence of invitees in the audit committee impact firm value? Evidence from India. Cross Cultural & Strategic Management, 31(3), 381-405.
• Nouraldeen, R. M. (2024). The financial performance of Lebanese banks up to the financial crisis: do audit committee characteristics and ownership concentration matter?. EuroMed Journal of Business.
• Ocak, M. (2013). Yönetim kurulu ve üst yönetimde yer alan kadınların finansal performansa etkisi: Türkiye'ye ilişkin bulgular. Muhasebe ve Finansman Dergisi, (60), 107-126.
• Özer G., & Merter, A. K. (2019, Eylül). Denetim Komitesi Etkinliği ve Firma Performansı İlişkisi: BİST’te Bir Uygulama. Business an Organization Research. Yasar University (ss. 1008-1018), İzmir.
• Quttainah, M. A., & Ayadi, I. (2024). The impact of digital integration on corporate sustainability: Emissions reduction, environmental innovation, and resource efficiency in the European. Journal of Innovation & Knowledge, 9(3), 100525.
• Raimo, N., Vitolla, F., Marrone, A., & Rubino, M. (2021). Do audit committee attributes influence integrated reporting quality? An agency theory viewpoint. Business Strategy and the Environment, 30(1), 522-534.
• Sevim, Ş., & Eliuz, A. (2007). Denetim komitelerinin iç denetimin etkinliği üzerindeki rolleri ve İMKB’de bir araştırma. Muhasebe ve Finansman Dergisi, (36), 60-70.
• Sönmez, A. R., & Yılmaz, F. (2022). The Effects of Corporate Governance Implementations on Financial Performance: An Evidence from Turkey. International Journal of Contemporary Economics and Administrative Sciences, 12(1), 133-162.
• SPK, (2014). Kurumsal Yönetim Tebliği, 28871 Sayılı Resmi Gazete. blob:https://mevzuat.spk.gov.tr/f4f39e07-bc30-4d6b-b373-84bd0ccc0c5c
• Sultana, N., Singh, H., & Van der Zahn, J. L. M. (2015). Audit committee characteristics and audit report lag. International journal of auditing, 19(2), 72-87.
• Sun, K. J., & Zhang, J. H. (2024). A study of female presence in the audit process on audit quality. Journal of Forensic Accounting Research, 9(1), 87-108.
• Tan, Z., & Bal, K. (2021). Vekâlet teorisi çerçevesinde yönetim kurulu çeşitlendirmesi ve finansal performans ilişkisi: yatırım kuruluşları örneği. Avrasya Sosyal ve Ekonomi Araştırmaları Dergisi, 8(1), 38-54.
• Umar, U. H., Shawai, J. S., Adesugba, A. K., & Jibril, A. I. (2024). Audit committee attributes and bank performance in Africa. Corporate Governance: The International Journal of Business in Society, 24(6), 1263-1282.
• Vatcheva, K. P., Lee, M., McCormick, J. B., & Rahbar, M. H. (2016). Multicollinearity in regression analyses conducted in epidemiologic studies. Epidemiology (Sunnyvale, Calif.), 6(2), 227. http://doi.org/10.4172/2161-1165.1000227.
• Yerdelen Tatoğlu, F. (2012). Panel Veri Ekonometrisi. İstanbul: Beta.
• Zulpahmi, Sumardi, Al Azizah, U. S., Nugroho, A. W., & Setiawan, E. (2024). Investigating the Impact of Corporate Governance on Financial Performance and Firm Value Prior To And During the Covid-19 Pandemic. Revista De Gestão- RGSA, 18(6), e05334. https://doi.org/10.24857/rgsa.v18n6-069