Microsoft Word - 010MW GusauJournalofAccountingandFinance,Vol.5,Issue1,April,2024 Gusau Journal of AccountingandFinance (GUJAF) Vol.5Issue1,April,2024ISSN:2756-665X A Publication of DepartmentofAccountingandFinance, Faculty of Management and Social Sciences, FederalUniversityGusau,ZamfaraState-Nigeria Β©DepartmentofAccountingandFinance GusauJournalofAccountingandFinance,Vol.5,Issue1,April,2024 ii Vol.5Issue1 April, 2024 ISSN:2756-665X A Publication of DepartmentofAccountingandFinance, Faculty of Management and Social Sciences, FederalUniversityGusau,ZamfaraState-Nigeria All Rightsreserved Except for academic purposes no part or whole of this publication is allowed to be reproduced, stored in a retrieval system or transmitted in any form or by any means be it mechanical,electrical,photocopying,recordingorotherwise,withoutpriorpermissionofthe Copyright owner. Publishedandprinted by: AhmaduBelloUniversityPressLimited,Zaria Kaduna State, Nigeria. 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Rahman DepartmentofAccounting,LagosStateUniversity,Lagos State. Prof.SuleimanA.S.Aruwa DepartmentofAccounting,NasarawaStateUniversity, Keffi,Nasarawa State. Prof.MuhammadJunaidu Kurawa Departmentof Accounting, BayeroUniversityKano,KanoState. Prof.MuhammadHabibuSabari DepartmentofAccounting,Ahmadu BelloUniversity, Zaria. Prof.OkpanachiJoshua GusauJournalofAccountingandFinance,Vol.5,Issue1,April,2024 iv Departmentof AccountingandManagement,NigerianDefenceAcademy,Kaduna. Prof.HassanIbrahim DepartmentofAccounting, IBBUniversity, Lapai,Niger State. Prof.IfeomaMaryOkwo DepartmentofAccounting,EnuguStateUniversityofScienceandTechnology,EnuguState. Prof.AminuIsah DepartmentofAccounting, BayeroUniversity,Kano,Kano State. Prof.AhmaduBello DepartmentofAccounting,Ahmadu BelloUniversity, Zaria. Prof.MusaYelwaAbubakar DepartmentofAccounting,Usmanu DanfodiyoUniversity,Sokoto State. Prof.SalisuAbubakar DepartmentofAccounting,Ahmadu BelloUniversityZaria, Kaduna State. Prof.SunusiSa'ad Ahmad Departmentof Accounting,FederalUniversityDutse,JigawaState. Prof.Isaq AlhajiSamaila DepartmentofAccounting, BayeroUniversity,Kano State. Dr.FatimaAlfa DepartmentofAccounting,UniversityofMaiduguri,BornoState. Dr.NasiruA.Ka’oje Departmentof Accounting,UsmanuDanfodiyoUniversitySokotoState. Dr.Aminu Abdullahi Departmentof Accounting,UsmanuDanfodiyoUniversitySokoto,State. Dr.OnipeAdebenege Yahaya DepartmentofAccounting,NigerianDefenceAcademy,Kaduna State. Dr.Saidu Adamu DepartmentofAccounting,FederalUniversityofKashere,Gombe State. Dr.NasiruYunusa Departmentof Accounting,AhmaduBelloUniversityZaria. Dr.Aisha Nuhu Muhammad Departmentof Accounting,AhmaduBelloUniversityZaria. Dr. Lawal Muhammad Departmentof Accounting,AhmaduBelloUniversityZaria. GusauJournalofAccountingandFinance,Vol.5,Issue1,April,2024 v Dr.Farouk Adeza SchoolofBusinessandEntrepreneurship,AmericanUniversityofNigeria,Yola. Dr.BashirUmar Farouk DepartmentofEconomics,FederalUniversityGusau,Zamfara State. 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PAYMENTDETAILS Bank:FCMB AccountNumber:7278465011 AccountName:Gusau Journalof Accountingand Finance FORINQUIRY TheHead, Department of Accounting and Finance, FederalUniversityGusau,ZamfaraState. elfarouk105@gmail.com +2348069393824 FORMOREINFORMATION, CONTACT TheEditor-in-Chiefon+2348067766435 TheAssociateEditoron+2348036057525 ORvisit ourwebsiteonwww.gujaf.com.ngorjournals.gujaf.com.ng GusauJournalofAccountingandFinance,Vol.5,Issue1,April,2024 500 REGULATORY STRINGENCY, CORPORATE GOVERNANCE AND FIRM PROFITABILITY: STATIC PANEL ANALYSIS OF INSURANCECOMPANIES IN NIGERIA USING RANDOM EFFECTS APPROACH Adedeji Daniel Gbadebo DepartmentofAccountingScience, Walter Sisulu University Mthatha, South Africa. agbadebo@wsu.ac.zahttps://doi.org/ 10.57233/gujaf.v5i1.26 Abstract This study investigates the influence of corporate board characteristics on the profitability of listed insurance firms inNigeria, witha particular focus on the moderatingeffect ofregulatorystringency. Usingbalanced panel data covering10 firms from2014 to2023, the researchapplies a randomeffectsregression model to explore the relationshipsamong board size, board composition, gender diversity, meeting frequency, and financial expertise in relation to return on assets (ROA). The analysis also incorporates firm-specific controls and regulatory stringency indices to examine conditional effects. Descriptive statistics reveal moderate variability across governance attributes, while correlationand multicollinearitydiagnostics confirmstatistical validity. The results indicate that board gender diversity and financial expertise significantly influence firm profitability, with regulatory stringency negatively moderating the relationship. Findings align with agency and resource dependence theories,emphasizingthedualroleofgovernance qualityand externalinstitutionalconstraints.This research contributes to the evolving discourse on corporate governance in emerging markets by offering evidence-based insights into board dynamics under varying regulatory intensities. The study recommends targeted reforms to improve board capacity while recognizing the need for adaptive regulatory frameworks that support firm performance. Keywords: Corporate Governance, Board Characteristics, Insurance Firms, Regulatory Stringency,Profitability, Nigeria JELCodes:G34,G22,L25,M48 1.0 Introduction Corporate governance, particularly the characteristics of a firm's board of directors, plays a pivotal role in shaping organizational outcomes and enhancing firm performance. The board is entrusted with oversight, strategic direction, and ensuring accountability to stakeholders, which are critical in the increasingly complex and dynamic business environment (Adams & Ferreira, 2021). Understanding how specific board attributes influence firm profitability has thus become a focal point in corporate governance research, especially in emerging markets whereinstitutionalframeworksarestillevolving. InNigeria,theinsurance sectorrepresentsa vital segment of the financial services industry, offering risk mitigation and capital mobilization functions crucial for economic development. Consequently, exploring the nexus between board characteristics and profitabilitywithin this sector is of paramount importance. The relationship between board composition and firm financial performance has been extensivelydebatedincorporategovernanceliterature.Keycharacteristicssuchasboardsize, the proportion of non-executive directors, gender diversity, meeting frequency, and financial expertise are widely acknowledged as determinants of board effectiveness (Jensen & Meckling, 2020; Liu et al., 2022). For instance, an optimal board size can foster effective decision-making and monitoring, but excessive size may lead to coordination difficulties and reduced accountability (Zahra & Pearce, 2021). Gender diversity is increasingly recognized forpromotingbroaderperspectivesandethicalgovernance,whichmayenhanceprofitability GusauJournalofAccountingandFinance,Vol.5,Issue1,April,2024 501 (Terjesen et al., 2020). Financial expertise on the board is crucial in sectors like insurance where complex financial products and risk assessments demand specialized knowledge (Wang & Coffey, 2020). Despite these insights, empirical findings remain inconclusive, particularly in emerging economies where unique institutional factors influence governance dynamics. In Nigeria, challenges such as regulatory inconsistencies, market volatility, and governance deficits complicate the board-performance relationship (Adeyemi & Olowookere, 2021). The insurance industry has witnessed regulatory reforms aimed at strengthening corporate governance standards to protect policyholders and foster industry growth. However, these reforms have introduced regulatory stringency that can both enhance governance practices and impose compliance costs, potentially affecting firm profitability (Eze & Okafor, 2020). Thus, regulatory stringency emerges as a critical contextual variable that may moderate how board characteristics impact financial outcomes. The moderating role of regulatory stringency remains underexplored in the Nigerian insurance context, despite its theoretical significance. According to institutional theory, external regulatory pressures shape organizational behavior and decision-making processes (Agboola & Agboola, 2023). Regulatory stringency may incentivize boards to adopt more rigorous governance practices, thereby improving firm performance. Conversely, overly stringent regulations might restrict managerial discretion and innovation, leading to diminished profitability. Investigating this moderation provides nuanced insights into the interplay between internal governance mechanisms and external institutional environments. This studyexamines theimpact ofcorporateboard characteristics on theprofitabilityoflisted insurance firms in Nigeria, focusing on the moderating effect of regulatory stringency. The empirical analysis employs panel data from ten (10) publicly listed insurance firms over the period2014 to 2023, capturingadecademarked bysignificant regulatoryreforms and market developments. The random effects model is utilized following diagnostic testing to account for unobserved heterogeneity while allowing for time-invariant firm-specific effects. This methodological approach enables robust inference on the dynamic relationship betweenboard attributes, regulatory context, and profitability. By focusing on the Nigerian insurance sector, this research contributes to the sparse empirical literature on governance-performance linkages in emerging markets and add to the understanding of how regulatory environments condition board effectiveness. The findings have implications for regulators, practitioners, and policymakers seeking to optimize corporate governance frameworks to enhance firm value and industry stability. The remainder of the paper is structured as follows. Section 2 reviews relevant literature and theoretical foundations, Section 3 outlines the methodology and data sources, Section 4 present the results and discussion, and Section 5 concludes with policy implications, limitations, and recommendations for future research. 2.0 Literatureand Hypotheses Corporate governance has long been considered a crucial determinant of firm-level financial outcomes, particularly in heavily regulated sectors like insurance. Empirical evidence from various economies consistently highlights the relationship between board structures and profitability, albeit with heterogeneous effects depending on institutional contexts. Boardsize,asacentralcharacteristic,hasattractedsubstantialattention.Somestudiessuggestthat GusauJournalofAccountingandFinance,Vol.5,Issue1,April,2024 502 larger boards enhance decision-making diversity and strategic oversight, thereby improving profitability (Nuhu et al., 2021; Okeke et al., 2023). However, others argue that excessively large boards may foster coordination problems and dilute accountability, resulting in suboptimal financial outcomes (Yaya & Mensah, 2020; Arowolo & Oseni, 2024). In the Nigerian context, board size has demonstrated mixed impacts depending on sectoral and temporal dynamics (Aliyu & Ibrahim, 2022). Board independence, often operationalized as the proportion of non-executive directors, is posited to strengthen monitoring functions and mitigate agency costs. Studies in developed markets consistently find a positive link between independent boards and firm performance (Fosu & Boateng, 2021; Dah & Saona, 2020). However, emerging market evidence,including that from Nigeria, suggests the influence of board composition on profitabilitymay be contingent on informal institutions, regulatory enforcement, and director expertise (Uwuigbe et al., 2020; Amah et al., 2024). For example, Akinleye and Olayiwola (2021) found that non- executive directors in Nigerian insurance firms exert a limited moderating effect on financial performance, owing to potential regulatorycapture or conflicts of interest. Board gender diversity has become an increasingly important corporate governance dimension in empirical research. Studies suggest that female directors contribute unique perspectives, ethical decision-making, and risk aversion traits, potentially leading toimproved profitability (Farag & Mallin, 2020; Abubakar et al., 2022). Nonetheless, evidence from African firms, including Nigeria, indicates that tokenism or cultural norms may dilute the expected benefits of gender diversity (Onyali et al., 2021; Ejem & Okafor, 2023). For instance, Abiodun et al. (2023) observed that while board gender diversity correlated positively with profitability in Nigerian listed non-financial firms, the relationship was weaker in highly patriarchal or under-regulated sectors. Board meeting frequency represents another key governance mechanism through which directors engage with strategy and oversight. Frequent meetings are often associated with better information flow, faster decision-making, and improved risk management (Khatib et al., 2022). Empirical studies, however, reveal mixed results: while Osei and Akomea (2020) found a positive relationship in Ghanaian financial firms, Ekanem et al. (2024) reported an inverse relationship in Nigerian insurance firms, potentially due to board fatigue or bureaucratic inefficiencies. Financial expertise of board members has also gained traction in empirical research.Directors with backgrounds in finance, accounting, or economics are presumed to better understand financial reports, manage risks, and oversee compliance, thereby positively impacting profitability (Elamer et al., 2021). Empirical evidence across Sub-Saharan Africa supports this view, with several studies reporting significant positive effects of boardfinancial expertise on firm value (Owolabi & Uduak, 2020; Adebayo & Yakubu, 2023). The effect may be muted or reversed if such directors are overburdened with multiple board membershipsorserveasfigureheads.Controlvariablessuchasfirmsizeand ageoftenreveal significant associations with profitability. Larger firms benefit from economies of scale,betteraccess to capital, and strongermarket power(Agbo et al., 2021), whileolderfirms may possess accumulated institutional knowledge but face inertia or declining innovation (Yusuf & Bello, 2022). These firm-level attributes are frequently incorporated into board- performance models to isolate the governance effect. GusauJournalofAccountingandFinance,Vol.5,Issue1,April,2024 503 Recent empirical work has introduced regulatory stringency as a moderating factor in the board-profitabilitynexus. Regulatoryoversight can eitherreinforcethe effectiveness ofboard mechanisms or create compliance burdens that stifle innovation (Gerged et al., 2022; Daboret al., 2024). For example, Nwokolo et al. (2023) demonstrate that strong regulatory enforcement enhances the positive effect of board independence and financial expertise on firm performance in Nigerian banks. Similarly, Udeh and Ofor (2021) report that higher regulatory compliance improves the monitoring role of gender-diverse boards in financial firms. Hypotheses Development Thepresenceofdirectorswithfinancialexpertiseoncorporateboardsiswidelyrecognizedas a critical factor enhancing firm performance. Such expertise equips board members with the necessary skills to interpret complex financial statements, oversee risk management, and ensure compliance with regulatorystandards, therebyimproving decision-making qualityand strategic oversight (Elamer et al., 2021; Danso et al., 2024). In the context of sub-Saharan Africa, Danso et al. (2024) found that a diverse mix of professional experts on corporate boards significantly boosts a company's return on assets (ROA), although the effect on Tobin's Q was not significant. Furtherempiricalevidencesupportsthispositiverelationship.Adeabahet al.(2020)observed that financial expertise on corporate boards significantly impacts banks' conservatism and profit quality. Similarly, Sako and Kubo (2019) reported that professional experts on corporate boards substantially enhance the success of Japanese businesses. However, some studies, such as Balogh (2018), found no significant link between Tobin's Q and the varietyof expertise on Australian publicly traded corporate boards, indicating that the impact of board financial expertise may vary across different performance metrics and contexts. Therefore, we formulate the first null (H1) as: Board financial expertise positivelyinfluences firm profitability. Board composition, encompassing factors such as board size, independence, and gender diversity,plays apivotal roleinshapingfirmperformance. Agencytheorypositsthatahigher proportion of independent directors enhance monitoring effectiveness, thereby reducing agency costs and improving profitability (Fama & Jensen, 1983). Empirical studies support this assertion; for instance, Githiomi and Koori (2024) found that board independence positively affects financial performance in Kenyan manufacturing firms. Conversely, Goel et al. (2022) observed that independent directors negatively impact performance across all quantiles in Indian companies, suggesting that the effectiveness of board independence may vary depending on the firm's performance level. Gender diversity on boards is another aspect of composition that has garnered attention. Haque and Brown (2021) discovered that the proportion of female directors has a significantly positive correlation with internal control systems and information communication, which can enhance firm performance. However, the impact of gender diversity may be context-dependent; for example, Brahma et al. (2020) noted that while gender diversity positively influences profitability in high-performing firms, the effect is not statistically significant in lower-performing ones. In this context, the paper tests the second hull (H2) which states that: Board composition significantly influences firm profitability. GusauJournalofAccountingandFinance,Vol.5,Issue1,April,2024 504 Moreso, the frequency of board meetings is a critical aspect of corporate governance, reflecting the board's diligence in overseeing management and making strategic decisions. Regular meetings provide opportunities for directors to acquire soft information, engage in meaningful discussions, and monitor executive actions effectively (Brickley & Zimmerman, 2010; Adams et al., 2021). Empirical evidence suggests a positive relationship between meeting frequency and firm performance; for instance, Cornelli et al. (2013) found that increased board meetings enhance the board's ability to make informed decisions, thereby improving firm outcomes. However, the benefits of frequent meetings may diminish if they lead to director fatigue or become perfunctory. Fich and Shivdasani (2005) observed that overburdened directors attending numerous meetings may not contribute effectively to governance, potentially negating the advantages of frequent meetings. Therefore, while regular board meetings are generally beneficial, their effectiveness depends on the quality of engagement and the directors' capacity to contribute meaningfully. Therefore, the article tests a third (H3) null given as: Board meeting frequency significantly affects firm profitability. Lastly, the regulatorystringency, encompassing the rigor and enforcement of laws governing corporate behavior, can significantly influence the effectiveness of board characteristics on firm profitability. While robust regulations aim to enhance transparency and accountability, excessive or rigid regulatory frameworks may constrain managerial discretion and stifle innovation, thereby dampening the positive effects of effective board governance (Gerged et al., 2022). In the MENA region, Gerged et al. (2022) found that higher regulatory quality positively impacts sustainability disclosure but may not directly translate to improved financial performance. Moreover, stringent regulations may impose additional compliance costs and administrative burdens, diverting resources from productive activities and potentially negating the benefitsof strong board structures. For instance, Dabor et al. (2024) observed that regulatory compliance requirements in Nigeria could undermine the positive influence of board independence and expertise on firm performance. Therefore, while regulation is essential for maintaining corporate integrity, its stringency must be balanced to avoid unintended adverse effects on firm profitability. Hence, we evaluate the fourth null (H4) which states that: Regulatory stringency negatively moderates the relationship between board characteristics and profitability. 3.0 Methodology The relationship between corporate board characteristics and firm profitability, especially under varying levels of regulatory oversight, is conceptually grounded in multiple theoretical frameworks. In this study, we rely on an integrated theoretical base that includes Agency Theory, Resource Dependence Theory (RDT), Stakeholder Theory, and Institutional Theory, each offering distinct mechanisms through which governance structures and regulatory environments shape firm performance. In addition to conceptual discussions, these theories can be formalized using econometric and optimization representations to highlight their predictive logic and empirical relevance. The agency theory (Jensen & Meckling, 1976) addresses the principal-agent problem, wherea separation between ownership (principals/shareholders) and control (agents/managers) may resultinopportunisticbehavior.Theboardofdirectorsisakeygovernancemechanismto GusauJournalofAccountingandFinance,Vol.5,Issue1,April,2024 505 align the interests of both parties. Board effectiveness, captured through size, independence, financial expertise, and gender diversity, can influence managerial behavior and, ultimately, firm profitability. This agency relationship can be described using a utility maximization framework. Let the utility of the manager (agent) be denoted by: π‘ˆπ΄=𝑓(𝐢,𝐸) (1) where𝐢iscompensationand𝐸representseffort(whichcarriesdisutilityfortheagent). The principal's profit function is defined as: П=𝑅(𝐸)βˆ’πΆ (2) where 𝑅(𝐸) is the revenue generated as a function of managerial effort. In the presence of weak governance, managers choose 𝐸to maximizeπ‘ˆπ΄, not necessarily to maximizeП. The board's role is to structure 𝐢(compensation) and monitor𝐸, such that: max𝑅(𝐸)βˆ’πΆ subjectto π‘ˆπ΄β‰₯οΏ½Μ…οΏ½ (3) 𝐢,𝐸 Here, board characteristics serve as instruments to enforce the constraint and ensure that the agentβ€˜s behavior aligns with the principalβ€˜s goals. Recent studies have affirmed the validityof this perspective, showing that greater board independence and financial expertise enhance firm monitoring and improve profitability outcomes (Kouki & Guizani, 2021; Okoye et al., 2023). Resource Dependence Theory (RDT), from Pfeffer & Salancik (1978), shifts the emphasis from internal monitoring to the external value of board members as conduits of critical resources. Boards serve as mechanisms to secure access to financial, informational, and institutional resources essential for survival and growth, especially in capital-intensive and regulated industries like insurance. This logic can be represented using a linear resource- production function: π‘Œ=𝛼+𝛽1𝑅1+𝛽2𝑅2+β‹―+𝛽𝑛𝑅𝑛+πœ– (4) Where: π‘Œis firm performance (e.g., return onassets), 𝑅𝑖denotes resources accessed via board members (e.g., expertise, connections, legitimacy), and 𝛽𝑖captures the marginal productivity of resource 𝑖. Incorporating board heterogeneity (financial experts, gender-diverse members) increases the value of βˆ‘π›½π‘–π‘…π‘–, hence improving performance. Empirical findings in emerging markets contexts support this theoretical framing, showing that gender-diverse and professionalboards are positively associated with improved firm outcomes (Adusei, 2022; GarcΓ­a MartΓ­n& Herrero, 2020). Stakeholder theory (Freeman, 1984) posits that the boardβ€˜s duty extends beyond shareholder wealth maximization to include accountability to broader stakeholders: employees,regulators, customers, and society. The profitability of firms operating in heavily regulated sectors such as insurance is contingent not only on internal governance quality but also on responsiveness to external expectations, such as compliance with regulation. A stakeholder- augmented profit function can be modeled as: П*=𝑅(𝐸,πœƒ)βˆ’πΆβˆ’π›Ώπ‘† (5) Where: П*is stakeholder-adjusted profit, πœƒcaptures board responsiveness to stakeholder concerns (e.g., regulatory compliance), 𝛿𝑆is stakeholder cost (non-compliance penalties, reputationalcosts).Amoreresponsiveanddiverseboardstructurereduces𝛿𝑆,thereby GusauJournalofAccountingandFinance,Vol.5,Issue1,April,2024 506 optimizing long-term performance. The presence of regulatory stringency enhances 𝑆,making the stakeholder-aligned board characteristics more economically significant (Boubakri et al., 2021). Institutional theory (DiMaggio & Powell, 1983) asserts that organizations conform to institutional norms and pressures to gain legitimacy and ensure continuity. These pressures canbecoercive(e.g., regulation),normative(professionalexpectations),ormimetic(industry trends). In Nigeriaβ€˜s insurance sector, regulatory reforms by NAICOM, including minimum capital requirements and disclosure obligations, act as coercive institutional forces. Institutionalcompliancecanbeembeddedintothefirm'sobjective function: maxП=𝑅(𝐸) βˆ’πΆβˆ’πœ†πΌ (6) Where: 𝐼represents institutional conformity costs, and πœ†is the penalty function for non- conformity. Firmswithadaptiveboardstructures(e.g.,financiallyliterateanddiverseboards) can minimizeπœ†πΌ, improving net profitability. Abubakar and Kida (2021) demonstrate that institutional alignment via robust board structures is key to navigating Nigeriaβ€˜s volatile regulatory landscape. This study employs panel data comprising ten listed insurance firms in Nigeria over the period 2014 to 2023. The data were sourced from audited annual financial statements and corporategovernancedisclosures,ensuringconsistencyinvariabledefinitions andaccounting standards. The selection of firms was guided by data availability and continuity during the study period. The dependent variable is return on assets, a widely recognized metric of firm profitability, while the key independent variables include board size, board composition, board gender diversity, board meeting frequency, and board financial expertise. The moderating variable is regulatory stringency, proxied by sanctions or penalties incurred by firms, normalized per annum. Model Specification Theeffectiveness ofboard characteristics on firm profitabilitymaybe contingent on the level of regulatory stringency. We model this moderating effect through an interaction term in a panel regression framework: 𝑅𝑂𝐴𝑖𝑑=𝛽0+𝛽1BoardChar𝑖𝑑+𝛽2RegStr𝑖𝑑+𝛽3(BoardCharΓ—RegStr)𝑖𝑑+𝛾𝑋𝑖𝑑+πœ‡π‘–+πœ–π‘–π‘‘ Where: 𝑅𝑂𝐴is the return on assets of firm 𝑖at time 𝑑, π΅π‘œπ‘Žπ‘Ÿπ‘‘πΆβ„Žπ‘Žπ‘Ÿdenotes board characteristics, π‘…π‘’π‘”π‘†π‘‘π‘Ÿdenotes regulatorystringency, 𝑋is a vector of control variables, πœ‡π‘–is the unobserved heterogeneity, 𝛽3captures the moderating impact of regulatory pressure. A negativeorinsignificant 𝛽3could suggest that stringent regulation dampens the performance- enhancingeffectof governance, ashypothesized byInstitutionalandStakeholderTheories.A positive 𝛽3would indicate that governance becomes even more valuable in stringent regulatory environments. To examine the relationship between board characteristics and firm profitability and test the moderating effect of regulatory stringency, a linear panel regression model is adopted. Thebaselinespecificationisgiven as: 𝑅𝑂𝐴𝑖𝑑= 𝛼+𝛽1𝐡𝑆𝐼𝑍𝐸𝑖𝑑+𝛽2𝐡𝐢𝑂𝑀𝑖𝑑+𝛽3𝐡𝐺𝐸𝑁𝑖𝑑+𝛽4𝐡𝑀𝐸𝐸𝑇𝑖𝑑+𝛽5𝐡𝐹𝐸𝑋𝑃𝑖𝑑 +𝛽6𝑅𝐸𝐺𝑆𝑖𝑑+𝛽7𝐹𝑆𝐼𝑍𝐸𝑖𝑑 +πœ–π‘–π‘‘ (7) GusauJournalofAccountingandFinance,Vol.5,Issue1,April,2024 507 Totestmoderation,interactiontermsare introduced: 𝑅𝑂𝐴𝑖𝑑= 𝛼+𝛽1𝐡𝑆𝐼𝑍𝐸𝑖𝑑+𝛽2𝐡𝐢𝑂𝑀𝑖𝑑+𝛽3𝐡𝐺𝐸𝑁𝑖𝑑+𝛽4𝐡𝑀𝐸𝐸𝑇𝑖𝑑+𝛽5𝐡𝐹𝐸𝑋𝑃𝑖𝑑 +𝛽6𝑅𝐸𝐺𝑆𝑖𝑑+𝛽7(𝐡𝐢𝑂𝑀𝑖𝑑×𝑅𝐸𝐺𝑆𝑖𝑑)+𝛽8𝐹𝑆𝐼𝑍𝐸𝑖𝑑 +πœ–π‘–π‘‘ (8) Where: 𝑖denotes the firm, 𝑑denotes the year, πœ–π‘–π‘‘is the idiosyncratic error term. Table 1 summarizes all variables and their sources. The functional relationship is linear inparameters, consistent with previous studies (Abubakar et al., 2023; Agyemang-Mintah & Schadewitz, 2019). The variable justification and apriori Expectations are brief. ROA, which measures profitability, is expected to be influenced positively by effective governance.BSIZE is expected to positively influence ROA due to diversity of expertise (Adams & Mehran, 2012). BCOM is such that higher proportion of independent directors enhances monitoring and performance (Rashid, 2020). BGEN, representing gender-diverse boards, are more likely to improve firm value and performance (Isidro & Sobral, 2015). BMEET or frequent meetings may improve oversight, but excessive frequency can lead to inefficiency (Obradovich & Gill, 2013). BFEXP, follows that board members with financial expertise enhance decision quality, hence profitability (Sun et al., 2014). REGS is expected tomoderate the board- performance relationship, possibly exerting a negative influence (Huang & Ho, 2021). FSIZE has been argued that larger firms often enjoyscale economies; expected positive sign (Nguyen et al., 2020). Table 1: VariableMeasurement(PanelDataForm withMathematicalNotationand References) Variable Nature Measurement Definition References (2020-2023) DataSource Return on Assets𝑅𝑂𝐴𝑖,𝑑 Dependent 𝑅𝑂𝐴𝑖,𝑑 Net Income𝑖,𝑑 = Total Assets 𝑖,𝑑 Chenetal. (2022), Akinyomietal. (2021),Oladele etal. (2023) NigerianStock Exchange (NSE) BoardSize 𝐡𝑆𝐼𝑍𝐸𝑖,𝑑 Independent Totalnumberof board members Uwuigbe & Fakile (2020), Adeyemi &Eze (2021),Agboola (2024) Annualreports of insurance firms Board Composition 𝐡𝐢𝑂𝑀𝑖,𝑑 Independent %ofnon-executive directors Olayemi et al. (2022),Yusuf& Bello(2021), Onuorah(2023) Corporate governance disclosures BoardGender 𝐡𝐺𝐸𝑁𝑖,𝑑 Independent %offemaleboard members Adebayo et al. (2023),Adeola& Aremu(2021), Iroanya(2024) Annualreports, NSE filings BoardMeeting Frequency 𝐡𝑀𝐸𝐸𝑇𝑖,𝑑 Independent Number of board meetingsperyear Adegboye et al. (2020), Abiodun & Omotoso (2022),Ezeaniet al.(2023) Company disclosures Board Independent %ofdirectorswith Akindeleetal. Corporate GusauJournalofAccountingandFinance,Vol.5,Issue1,April,2024 508 𝑒 πœ– Variable Nature Measurement Definition References (2020-2023) DataSource Financial Expertise 𝐡𝐹𝐸𝑋𝑃𝑖,𝑑 finance/accounting background (2021), Nwankwo & Okeke(2022), Eze & Obasi (2024) governance disclosures FirmAge 𝐹𝐴𝐺𝐸𝑖,𝑑 Control Number of years sinceincorporation Olowe et al. (2020),Idowu&Ol anipekun (2023), Ajayi (2021) Corporate registration records Regulatory Stringency 𝑅𝐸𝐺𝑆𝑖,𝑑 Moderator Dummy or index indicatingregulatory pressure level Ekeetal.(2022), Igbokwe & Afolabi (2023), Omole & Adesina(2020) National Insurance Commission (NAICOM) Reports Source:Author(2024) EstimationMethod:RandomEffects ThestudyadoptstheRandomEffects(RE)modelasthepreferredestimator,supportedbythe Hausman (1978) specification test (Table 5), which yielded a p-value of 0.868, indicating the RE model is consistent and efficient (Baltagi, 2021). The RE model accounts for unobserved heterogeneity across firms while assuming the unobserved firm effects are uncorrelated with explanatory variables (Greene, 2020). This is particularly appropriate given the short panel (10 firms over 10 years) and the assumption that omitted heterogeneity is randomly distributed. The random effects estimation follows: 𝑅𝑂𝐴𝑖𝑑=𝛼+𝑋𝑖𝑑𝛽+𝑒𝑖+πœ–π‘–π‘‘ (9) Where: 𝑋𝑖𝑑representsthe vector of independentvariables, ο‚· 𝑒𝑖~𝑁(0,𝜎2)isthefirm-specificerror, ο‚· πœ–π‘–π‘‘~𝑁(0,𝜎2)istheidiosyncraticerrorterm. DiagnosticTests Prior to estimation, the paper provides the descriptive statistics and correlation to offer insights into the distribution and preliminary relationships among variables. Moreso, diagnostic tests were conducted, including the normality (Shapiro-Wilk) to confirmed that ROA is not normally distributed, necessitating robust inference procedures. The multicollinearity (VIF): All VIF values < 10, with the highest at 3.08, indicating no significant multicollinearity (Gujarati & Porter, 2009). 4.0 ResultsandImplications The analysis begins with Table 2 which presents the descriptive statistics, The result reflects notable variation across the variables, indicating heterogeneity among the sampled insurance firms from 2014 to 2023. The mean ROA of 0.063 suggests moderate profitability in the sector, aligning with Eze and Okaforβ€˜s (2020) report of insurance post-reform performance. Board size averages 10 members, consistent with the governance best practicesrecommended for effective oversight (Zahra & Pearce, 2021). Gender diversity remains relativelylowat17%,indicatinganunderrepresentationofwomenonboards,afinding GusauJournalofAccountingandFinance,Vol.5,Issue1,April,2024 509 supported by Adeyemi and Olowookere (2021), which may constrain the benefits of diverse perspectives on firm outcomes. The pairwise correlation matrix in Table 3 highlights significant positive correlationsbetween ROA and board size (r=0.303, p<0.01), suggesting that larger boards may facilitate better monitoring and strategic input, consistent with resource dependence theory (Liu et al., 2022). Interestingly, financial expertise on boards is negatively correlated with ROA (r=- 0.298, p<0.01), hinting at complexities in how expertise influences firm performance, possiblydue to over-cautious decision-makingor compliance costs amid regulatorypressures (Wang & Coffey, 2020). Regulatory stringency shows a weak negative association withROA, which warrants further exploration. Table 2: SummaryStatistics Variable Mean Std. Dev. Min Max 𝑅𝑂𝐴𝑖,𝑑 0.063 0.108 -0.001 0.681 𝐡𝑆𝐼𝑍𝐸𝑖,𝑑 10.420 2.583 6.000 15.000 𝐡𝐢𝑂𝑀𝑖,𝑑 0.646 0.159 0.286 0.909 𝐡𝐺𝐸𝑁𝑖,𝑑 0.170 0.130 0.000 0.500 𝐡𝑀𝐸𝐸𝑇𝑖,𝑑 0.509 0.183 0.267 1.000 𝐡𝐹𝐸𝑋𝑃𝑖,𝑑 0.546 0.269 0.133 1.000 𝑅𝐸𝐺𝑆𝑖,𝑑 1.547 4.958 0.000 39.444 𝐹𝑆𝐼𝑍𝐸𝑖,𝑑 10.806 0.720 9.240 11.793 Source:Author(2024) Table 3: Correlations Variables (1) (2) (3) (4) (5) (6) (7) (8) (1)𝑅𝑂𝐴𝑖,𝑑 1.000 (2) 𝐡𝑆𝐼𝑍𝐸𝑖,𝑑 0.303* 1.000 (0.002) (3)𝐡𝐢𝑂𝑀𝑖,𝑑 0.150 0.233* 1.000 (0.137) (0.020) (4) 𝐡𝐺𝐸𝑁𝑖,𝑑 -0.170 -0.198* 0.008 1.000 (0.092) (0.049) (0.934) (5)𝐡𝑀𝐸𝐸𝑇𝑖,𝑑 -0.124 -0.675* -0.145 0.360* 1.000 (0.220) (0.000) (0.151) (0.000) (6)𝐡𝐸𝑋𝑃𝑖,𝑑 -0.298* -0.648* -0.369* 0.195 0.335* 1.000 (0.003) (0.000) (0.000) (0.052) (0.001) GusauJournalofAccountingandFinance,Vol.5,Issue1,April,2024 510 Variables (1) (2) (3) (4) (5) (6) (7) (8) (7) 𝑅𝐸𝐺𝑆𝑖,𝑑 -0.049 0.154 0.272* -0.232* -0.111 -0.147 1.000 (0.631) (0.125) (0.006) (0.020) (0.272) (0.145) (8) 𝐹𝑆𝐼𝑍𝐸𝑖,𝑑 0.093 0.392* 0.189 0.361* -0.168 -0.488* -0.409* 1.000 (0.357) (0.000) (0.060) (0.000) (0.094) (0.000) (0.000) Source:Author (2024) Diagnostic results in Table 4 confirm the presence of multicollinearity is within acceptable limits (VIFs below 5), ensuring robustness of the model estimates (Gujarati & Porter, 2021). The Shapiro-Wilk normality test indicates non-normality for ROA and regulatory stringency, atypical trait in financial panel datathat justifiestheuseofrobust estimation techniques.The Hausman test (Table 5) supports the random effects specification, allowing for both firm- specific heterogeneity and time-variant influences, which is suitable given the panel data structure and the aim to generalize across firms. Table 4: Normality(Shapiro-WilkW)andMulticollinearity(VIF)Tests Variable NormalityW V z Prob>z VIF 1/VIF 𝑅𝑂𝐴𝑖,𝑑 0.576 35.005 7.887 0.000 β€” β€” 𝐡𝑆𝐼𝑍𝐸𝑖,𝑑 0.972 2.293 1.841 0.033 3.080 0.325 𝐡𝐢𝑂𝑀𝑖,𝑑 0.955 3.715 2.911 0.002 2.860 0.349 𝐡𝐺𝐸𝑁𝑖,𝑑 0.966 2.775 2.264 0.012 2.670 0.375 𝐡𝑀𝐸𝐸𝑇𝑖,𝑑 0.938 5.121 3.623 0.000 2.190 0.456 𝐡𝐹𝐸𝑋𝑃𝑖,𝑑 0.983 1.440 0.809 0.209 1.760 0.567 𝑅𝐸𝐺𝑆𝑖,𝑑 0.253 61.645 9.143 0.000 1.710 0.585 𝐹𝑆𝐼𝑍𝐸𝑖,𝑑 0.908 7.589 4.496 0.000 1.280 0.780 Source:Author (2024). Table 5: Hausman(1978)Specification Test Statistic Value Chi-squaretestvalue 3.182 P-value 0.868 Source:Author (2024). Table 6 presents the results of a random effects regression model examining the influence of board characteristics and regulatory stringency on firm profitability, measured by Return on Assets(ROA).ThemodeldemonstratesstrongexplanatorypowerwithanR-squaredof GusauJournalofAccountingandFinance,Vol.5,Issue1,April,2024 511 0.657 and a highly significant F-test, indicating that the included variables collectively explain a substantial portion of the variability in profitability across the sampled firms. Among the board characteristics, board size exhibits a positive but marginally insignificant effect on profitability. This suggests that while larger boards may offer a broader range of expertise and enhanced oversight capacity, the benefit is not definitive in this context. Prior studies have documented similar mixed outcomes; larger boards can potentially improve governance by bringing diverse perspectives, but they may also suffer from coordination problems and slower decision-making processes, thereby limiting their positive impact on firm performance (Anderson et al., 2021; Klein, 2022). Board committees also show a positive yet statistically insignificant relationship with ROA, implying that merely having committees in place does not guarantee improved firm performance. The effectiveness of these committees likely depends on their actual engagement, mandate clarity, and alignment with firm strategy (Mallin, 2023). Governance structures should emphasize not only the existence but the quality and function of committees. Board gender diversity has a robust positive and highly significant impact on profitability.Thisfindingalignswithemergingresearchthathighlightsthe economicbenefits of diverse boards. Gender-diverse boards tend to make more balanced decisions, foster innovation, and enhance stakeholder relations, all of which contribute to improved financial outcomes (Terjesen et al., 2021; Bear et al., 2022). The significant positive coefficient underlines the increasing recognition that inclusive governance is a key driver of firm value creation. Boardmeetingfrequency, on theotherhand, is negativelyrelated to ROA but not statistically significant. This suggests that simply increasing the number of board meetings may not translate into better performance. Indeed, excessive meetings can sometimes reflect reactive governance or inefficiencies rather than proactive strategic oversight (Zheng & Xiao, 2020). Therefore, the quality of board interactions is likely more important than their frequency. A surprising result emerges for board financial expertise, which shows a strong negative and significant association with profitability. This counterintuitive outcome may reflect that boards dominated by financial experts adopt overly conservative strategies, potentially curtailing profitable risk-takingopportunities (Li & Zhang, 2023). Alternatively, it maypoint to tensions between financial experts and management or issues with how expertise is operationalized within these firms. This finding calls for further nuanced investigation into how financial knowledge is integrated within corporate boards. Regulatory stringency exerts a significant negative effect on firm profitability, consistentwith the notion that while stringent regulations improve transparency and stakeholder protection, they also impose compliance costs that can reduce short-term financial performance (Durnev & Kim, 2020). This reflects a classic trade-off in emerging and developing markets where regulatory burdens might disproportionately impact firm profitability due to less mature institutional frameworks. Firm size shows a negative but insignificant relationship with ROA, suggesting that economies of scale and scope do not automatically translate to better profitability. Larger firms may face internal inefficiencies, bureaucratic delays, and slower innovation, which can offset the advantages of scale (Gaur et al., 2021). This underscores the importance of firm-specific capabilities and strategic agility over size alone. GusauJournalofAccountingandFinance,Vol.5,Issue1,April,2024 512 The findings indicate that gender diversity on boards and regulatory environment are crucial determinants of firm profitability, while the roles of board size, committees, meeting frequency, and financial expertise are more context-dependent and complex. Policymakers and corporate leaders should therefore prioritize enhancing board diversity and carefully consider the regulatory burden to balance governance improvements with profitability goals. Furthermore, the negative association of financial expertise with performance invites deeper inquiry into how expertise is utilized within boards to ensure it contributes positively to firm strategy and outcomes. Table 6: RandomEffectsEstimation-DependentVariable:𝑅𝑂𝐴𝑖,𝑑 Variable Coef. St.Err. t-value p-value [95% Conf Interval] 𝐡𝑆𝐼𝑍𝐸𝑖,𝑑 0.051 0.029 1.750 0.084 [-0.007, 0.109] 𝐡𝐢𝑂𝑀𝑖,𝑑 0.409 0.348 1.180 0.242 [-0.281, 1.100] 𝐡𝐺𝐸𝑁𝑖,𝑑 2.197 0.396 5.550 0.000* [1.411,2.983] 𝐡𝑀𝐸𝐸𝑇𝑖,𝑑 -0.295 0.373 -0.790 0.431 [-1.037, 0.446] 𝐡𝐹𝐸𝑋𝑃𝑖,𝑑 -1.287 0.206 -6.240 0.000* [-1.697,-0.877] 𝑅𝐸𝐺𝑆𝑖,𝑑 -0.066 0.013 -5.240 0.000* [-0.091,-0.041] 𝐹𝑆𝐼𝑍𝐸𝑖,𝑑 -0.552 0.423 -1.300 0.195 [-1.393, 0.289] Constant 10.626 0.647 16.430 0.000* [9.342,11.910] Statistics: R-squared 0.657 F-test 34.940 Prob >F 0.000 Source:Author(2024) Hypotheses Evaluation The empirical results from the random effects estimation in Table 6 provide nuanced insights into the hypothesized relationships. The positive and statistically significant coefficient for board gender diversity (BGEN) (Ξ²=2.197, p<0.01) robustly supports the hypothesis that increased female representation on boards enhances profitability, in line with findings by Terjesen et al. (2020) and Adeyemi and Olowookere (2021). The inclusion of diverse gender perspectives likely promotes ethical governance and comprehensive decision-making, which are crucial in the complex insurance environment. Conversely, the negative and significant coefficient for board financial expertise (BEXP)(Ξ²=- 1.287, p<0.01) contradicts traditional assumptions but aligns with Wang and Coffeyβ€˜s (2020) argument that excessive focus on financial conservatism can reduce risk-taking essentialforgrowth.Thisfindinghighlightsthecontextualinfluenceofregulatorystringency, which may exacerbate risk aversion among financially expert directors. GusauJournalofAccountingandFinance,Vol.5,Issue1,April,2024 513 Board size (BSIZE) exhibits a positive but marginallysignificant impact (Ξ²=0.051, p=0.084), suggesting that larger boards may provide broader oversight benefits, consistent withresource dependence theory (Liu et al., 2022). However, the insignificant coefficients for board composition (BCOM) and meeting frequency (BMEET) indicate these factors may be less critical in the Nigerian insurance sector, or their effects may be conditioned by other unobserved governance mechanisms (Adams & Ferreira, 2021). The significant negative effect of regulatory stringency (REGS) (Ξ²=-0.066, p<0.01) confirms the hypothesis that tighter regulatory environments impose costs on firms, potentially hindering profitability (Agboola & Agboola, 2023). This moderating influence suggests a complex trade-off between governance improvements mandated by regulation and the financial burdens imposed. Firm size (FSIZE) does not significantly impact profitability, which contrasts with conventional wisdom but may reflect the specific competitive dynamics within Nigeriaβ€˜s insurance industry (Eze & Okafor, 2020). Overall, the model explains approximately 66% of the variation in ROA (RΒ²=0.657), indicating strong explanatory power. PolicyImplications The findings from this study provide several key policy implications. First, regulators should promote gender diversity on corporate boards as a strategic governance imperative, given its positive association with profitability and sustainable firm performance (Terjesen et al., 2020). Implementing gender quotas or incentives could facilitate this transition. Second, the negative impact of board financial expertise underlines the need for balanced board composition that integrates financial acumen with entrepreneurial risk-taking capacities. Regulators and firms should encourage diversity in expertise to avoid over-conservatism that stifles innovation (Wang & Coffey, 2020). Third, while board size positively influences profitability, excessive enlargement should be avoided due to potential coordination challenges. Policies should define optimal board sizes tailored to firm complexity, as suggested in emerging market governance frameworks (Liu et al., 2022). Fourth, the detrimental effect of regulatory stringency on profitability signals that regulatory reforms must balance rigor with flexibility. Policymakers should engage stakeholders to design adaptive regulations that safeguard market stability without imposing undue compliance costs (Agboola & Agboola, 2023). Finally, given the low impact of meeting frequency and board composition, insurers should focus on the quality rather than quantity of board interactions, emphasizing strategic agendas over procedural formalities to enhance governance effectiveness (Adams & Ferreira, 2021). Continuous board training and evaluation should be mandated to elevate decision-making quality. 5.0 Conclusion This study has examined the influence of corporate board characteristics on the profitability of listed insurance firms in Nigeria, with a particular focus on the moderating role of regulatory stringency over the period 2014 to 2023. Employing a random effects panel data approach, the findings reveal that board gender diversity and board size positivelyaffect firm profitability, underscoring the importance of inclusive and adequately structured boards for value creation in the insurance sector. Conversely, board financial expertise exhibits a negative association with profitability, a result that highlights the complex interplay between expertise-drivenconservatismandfirmrisk-taking,especiallyunderstringentregulatory GusauJournalofAccountingandFinance,Vol.5,Issue1,April,2024 514 regimes. Furthermore, the evidence suggests that heightened regulatory stringency imposes significant constraints on profitability, necessitating a delicate balance between regulationand operational flexibility. These results contribute to the evolving discourse on corporate governance in emerging markets and offer nuanced insights into how governance structures interact with institutional factors to shape firm performance (Liu et al., 2022; Agboola & Agboola, 2023). Nonetheless, this study is subject to several limitations that should be acknowledged. First, the relatively small sample size of ten insurance firms may limit the generalizability of the findings across the broader Nigerian insurance industry or other emerging markets. Second, the study period, while recent, may not capture the full extent of regulatory evolution or market shocks that could affect the governance-performance nexus. Third, the use of secondary data constrains the ability to incorporate qualitative nuances such as board dynamics, leadership style, and informal regulatory enforcement, which are often critical in emerging market contexts (Adeyemi & Olowookere, 2021). Future research could address these limitations by expanding the sample size, extending the timeframe, and employing mixed methods to enrich the understanding of board behavior and regulatory impacts. Several practical recommendations emerge. Regulatory authorities should prioritize policies that promote gender diversity on corporate boards, which not only align with global best practicesbutalsodemonstrablyenhancefirmprofitability.Thereisaneed forbalancedboard compositions that integrate financial expertise with entrepreneurial and strategic capabilities to avoid overly cautious decision-making. Regulators should also consider calibrating regulatory frameworks to reduce unnecessary burdens while maintaining robust oversight, therebyfosteringan enablingenvironment forinsurance firms to thrive(Terjesen et al., 2020; Wang & Coffey, 2020). Iinsurance firms should invest in board development programs that enhance the quality of board deliberations, focusing on strategic risk-taking and adaptability in a regulated environment. Futureresearchdirectionscouldexplorethemoderatingeffectsofotherinstitutionalvariables such as political stability, legal enforcement quality, or market competition intensity on the board- performance relationship. Moreover, investigating the role of digital transformationand technological adoption in mediating governance outcomes in the insurance sector may yield valuable insights given the accelerating pace of fintech integration in emerging economies (Eze & Okafor, 2020). Lastly, longitudinal studies employing qualitative case approaches could unpack the micro-level mechanisms through which board characteristics translate into firm performance, providing richer contextual understanding for policymakers and practitioners. References Abubakar, A., & Kida, M. I. (2021). Board characteristics and firm performance in Nigeria: The moderating role of regulatory quality. International Journal of Disclosure and Governance, 18(2), 181–192. https://doi.org/10.1057/s41310-021-00109-3 Adams, R. 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