Banking disclosure and banking crises in Africa: does board gender diversity play a role?

The study addresses whether and how board gender diversity shapes the link between bank information disclosure and the likelihood of banking crises in Africa. Banking crises have recurred globally and in Africa, underscoring the need for improved monitoring and market discipline. Corporate governance characteristics, including gender diversity, may influence board decisions, the quality and extent of disclosures, and ultimately banking system stability. While prior work has examined governance and disclosure, limited evidence exists on the specific role of board gender diversity in African banks, especially in relation to crisis probabilities. Guided by the wake-up call hypothesis, resource dependence theory, and signaling theory, the paper posits that gender-diverse boards increase disclosure, and that both gender diversity and disclosure independently reduce the probability of banking crises. It further hypothesizes that gender diversity amplifies the stabilizing effect of disclosure on crisis risk, thereby contributing to more stable banking systems within Africa’s evolving governance and disclosure frameworks.

The literature review integrates resource dependence and signaling theories to frame three hypotheses. Resource dependence theory suggests that female directors provide unique resources (diverse perspectives, monitoring, networks) that enhance board effectiveness and disclosure quality. Stakeholder theory supports the view that greater female participation aligns with protecting broader stakeholder interests, potentially improving governance and stability. Signaling theory posits that higher disclosure reduces information asymmetry and signals prudence, decreasing crisis likelihood. Empirical studies show mixed effects of disclosure on stability but generally indicate benefits: better performance and market discipline with greater transparency; during crises, disclosure effects can be attenuated. Prior research links board gender diversity to improved performance, monitoring, and disclosure, but evidence on its role in the disclosure–crisis nexus in Africa is scarce. The study formulates: H1: Board gender diversity increases bank disclosure; H2: Board gender diversity and bank disclosure reduce the predicted probability of banking crises; H3: Board gender diversity strengthens the negative effect of disclosure on crisis probability.

Data: Unbalanced panel covering banks across 42 African countries for 2006–2018. Macroeconomic indicators from World Development Indicators; bank-specific data from Bankscope and Global Financial Development Database. Key variables: Banking crisis (dummy=1 if a country experiences a crisis in a year); board gender diversity measured by (i) presence of at least one woman on the board (dummy), and (ii) number/proportion of women on the board (and its squared term); bank disclosure measured on a 0–10 scale (investor protection and financial information disclosure). Controls: market power (Lerner index), board ownership (percentage of directors holding shares), log GDP per capita, exchange rate, and inflation. Models: (1) Effect of gender diversity on disclosure estimated via pooled OLS, fixed effects, random effects, and 2SLS (instrument: board expenses), with year and country effects. (2) Independent effects of gender diversity and disclosure on crisis probability estimated via panel logistic regression (year and country effects), with robustness via pooled OLS, FE, RE, and 2SLS. (3) Interaction models assessing whether gender diversity moderates the disclosure–crisis relationship, estimated via logistic regression and dynamic system GMM to address endogeneity and persistence (including lagged crisis). Diagnostics: Normality (Shapiro–Wilk), multicollinearity (VIF < 10), Hausman tests for model selection, Breusch–Pagan LM for random effects, and standard GMM diagnostics (Hansen test, AR(1)/AR(2)).

• Board gender diversity and bank disclosure: Number of women on boards is negatively related to disclosure at low levels, but the squared term is positive and significant, indicating a U-shaped relationship; presence of at least one woman has a positive, significant effect on disclosure across specifications. Example coefficients (Table 4): Number of Women ≈ −0.104 to −0.161 (p<0.01); sq(Number of Women) ≈ 0.078 to 0.127 (p<0.01); Women on Boards (presence) ≈ 1.279 to 2.372 (p<0.01).
• Independent effects on crisis probability (Logit, Table 5, Model 5): Number of Women −0.496 (p<0.01); Women on Boards −3.245 (p<0.01); Bank Disclosure −0.973 (p<0.01), indicating all three reduce the predicted probability of crisis. Controls: Lerner index positive (1.835, p<0.01), OWN positive (0.899, p<0.01), log GDP per capita positive (0.104, p<0.01), exchange rate negative (−0.000872, p<0.01), inflation positive (0.0892, p<0.01).
• Interaction effects (Table 6): Disclosure’s negative effect on crisis is stronger when gender diversity is higher. Net effects reported: −0.1389 (presence interaction, Model 10), −0.1336 (number interaction, Model 11), −0.9826 and −0.8577 (system GMM, Models 12–13), all significant, showing that gender diversity magnifies disclosure’s crisis-reducing impact.
• Persistence: Lagged crisis is positively associated with current crisis in GMM models, indicating persistence of crisis dynamics. Overall: Women on boards improve disclosure, both gender diversity and disclosure independently reduce crisis likelihood, and gender diversity enhances the stabilizing effect of disclosure.

Findings support the resource dependence theory: women on boards enhance monitoring, bring diverse expertise, and foster better information environments, increasing disclosure. The observed U-shaped link between the number of women and disclosure suggests that minimal female representation may coincide with lower disclosure, while moving beyond a threshold increases disclosure, implying an optimal range for board composition. Results also align with signaling theory, where greater disclosure reduces information asymmetry and the probability of crises. The negative associations of both gender diversity and disclosure with crisis probability indicate complementary governance and transparency channels to stability. The interaction results demonstrate that gender-diverse boards strengthen the effectiveness of disclosure in lowering crisis risk, suggesting that diversity improves how boards interpret, oversee, and deploy disclosure policies to signal prudence and attract disciplined funding. Control variable patterns (e.g., positive Lerner index and inflation effects) are consistent with higher market power and macro pressures being associated with greater crisis risk. The persistence of crisis emphasizes the importance of sustained governance and disclosure practices.

The study contributes evidence from Africa that board gender diversity promotes bank information disclosure and that both board gender diversity and disclosure reduce the predicted probability of banking crises. Importantly, gender diversity strengthens the crisis-reducing effect of disclosure. Policy implications include encouraging gender-diverse boards and adopting optimal disclosure policies to bolster market discipline and stability. Banks should target an optimal number of women on boards to maximize disclosure benefits and leverage women’s unique skills in financial reporting oversight. Regulators and stakeholders can consider frameworks that promote diversity and transparency as complementary tools for crisis prevention. Future research should examine how regulatory contexts and regional differences shape the diversity–disclosure–stability nexus and explore causal mechanisms with granular bank- and board-level data.