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Based on the theoretical framework, this paper analyzes the sentiment-herding relationship in emerging stock markets (ESMs). First, it aims to examine the effect of investor sentiment on herding. Second, it seeks the direction of causality between sentiment and herding time series.

The present study applies the Exponential Generalized Auto_Regressive Conditional Heteroskedasticity (EGARCH) model to capture the volatility clustering of herding on the financial market and to investigate the role of the investor sentiment on herding behaviour. Then the vector autoregression (VAR) estimation uses the Granger causality test to determine the direction of causality between the investor sentiment and herding. This study uses a sample consisting of stocks listed on the Shanghai Composite index (SSE) (348 stocks), the Jakarta composite index (JKSE) (118 stocks), the Mexico IPC index (14 stocks), the Russian Trading System index (RTS) (12 stocks), the Warsaw stock exchange General index (WGI) (106 stocks) and the FTSE/JSE Africa all-share index (76 stocks). The sample includes 5,020 daily observations from February 1, 2002, to March 31, 2021.

The research findings show that the sentiment has a significant negative impact on the herding behaviour pointing out that the higher the investor sentiment, the lower the herding. However, the results of the present study indicate that a higher investor sentiment conducts a higher herding behaviour during market downturns. Then the outcomes suggest that during the crisis period, the direction is one-way, from the investor sentiment to the herding behaviour.

The findings may have implications for universal policies of financial regulators in EMs. We have found evidence that the Emerging investor sentiment contributes to the investor herding behaviour. Therefore, the irrational investor herding behaviour can increase the stock market volatility, and in extreme cases, it may lead to bubbles and crashes. Market regulators could implement mechanisms that can supervise the investor sentiment and predict the investor herding behaviour, so they make policies helping stabilise stock markets.

The originality of this paper lies in investigate the sentiment-herding relationship during the Surprime crisis and the Covid-19 epidemic in the EMs.

This study investigates the relationship between CEO leadership, gender homophily and corporate environmental, social and governance (ESG) performance. We also investigate whether it is essential to have a critical mass of women directors on the board to create a significant power of gender diversity in leadership positions.

Our study is based on firms listed on the London Stock Exchange (FTSE-All-Share) from 2011 to 2019. CEO characteristics and other board variables were collected from BoardEx, and ESG data, and other related variables were collected from Eikon database.

We find a critical mass of female directors contributes to ESG performance suggesting that token representation of female directors on boards limits their effectiveness. We do not find support for the gender homophily perspective, our findings suggest that the effectiveness of female CEOs does not depend on the existence of a critical mass of female directors. Female directors and female CEOs are less likely to be associated with ESG activities when firms experience poor financial performance. We also find that younger female CEOs have a positive impact on ESG performance. Furthermore, we find female CEOs with shorter tenure are more likely to improve ESG performance. Overall, our findings suggest a substitutional effect between having female CEOs and gender diverse boards.

This study contributes to the debate on gender homophily in the boardroom and how that may affect ESG practices. It also complements existing academic research on female leadership and ESG performance and has important implications for senior management and policymakers.

The objective of this work is to study the periodic solutions for a class of sixth-order autonomous ordinary differential equations x(6)+(1+p2+q2)x… .+(p2+q2+p2q2)x¨+p2q2x=εF(x,ẋ,x¨,x…,x… .,x(5)), where p and q are rational numbers different from 1, 0, −1 and p ≠ q, ε is a small enough parameter and F ∈ C² is a nonlinear autonomous function.

The authors shall use the averaging theory to study the periodic solutions for a class of perturbed sixth-order autonomous differential equations (DEs). The averaging theory is a classical tool for the study of the dynamics of nonlinear differential systems with periodic forcing. The averaging theory has a long history that begins with the classical work of Lagrange and Laplace. The averaging theory is used to the study of periodic solutions for second and higher order DEs.

All the main results for the periodic solutions for a class of perturbed sixth-order autonomous DEs are presenting in the Theorem 1. The authors present some applications to illustrate the main results.

The authors studied Equation 1 which depends explicitly on the independent variable t. Here, the authors studied the autonomous case using a different approach.

This study examines the importance of income income-shifting arrangements of US multinational corporations (MNCs) on future stock price crash risk.

This study employs a sample of 7,641 corporation-year observations over the 2005–2017 period and uses ordinary least squares regression analysis.

The authors find that the income-shifting arrangements of MNCs are positively and significantly associated with stock price crash risk after controlling for corporate tax avoidance and other known determinants of stock price crash risk in the regression model. This result is robust to alternative measures of stock price crash risk and income-shifting, and several endogeneity tests. The authors also observe that income-shifting arrangements increase stock price crash risk both directly and indirectly through the information opacity channel. Finally, in cross-sectional analyses, the authors find that the positive association between income-shifting and stock price crash risk is more pronounced for MNCs that use tax haven subsidiaries and have weak corporate governance mechanisms.

The authors provide new empirical evidence that MNCs will likely face significant capital market consequences regarding their income-shifting arrangements.

This study aims to examine whether the age and tenure of the chair of the board of directors are related to research and development (R&D) investment in China.

This study uses A-share manufacturing firms that traded on the Shanghai and Shenzhen stock exchange between 2009 and 2018. This study uses OLS regressions, controls for self-selection bias, and uses an instrumental variable to alleviate the concern of endogeneity.

This study finds that chair tenure has a negative relationship with R&D investment. This study does not find a significant relationship between chair age and R&D investment.

This study contributes to corporate governance and strategic management literature by highlighting chair tenure as a new factor affecting R&D investments. It also adds a significant contribution to the limited literature on the chair’s role in strategic decisions. Moreover, companies that are eager to strengthen corporate governance and maintain sustained innovation may reconsider the chair tenure. Given that many proposals for board governance reform explicitly stress the importance of limiting board tenure, this study contributes to policymakers by providing evidence in support of these proposals.

This paper aims to investigate the effect of corporate environmental disclosure on earnings management and to further examine whether this relationship is moderated by female board.

Our sample includes 264 European companies listed on the STOXX eUROPE 600 for the period 2010 to 2022. We excluded financial companies (banks and insurance companies) due to their specific capital structure and regulatory requirements, and companies with missing data. Feasible Generalized Least Square (FGLS) regression method is used to estimate the econometric models. For robustness analyses, the authors included the alternative measure of the dependent variable, and they applied the simultaneous equation model for the endogeneity test.

Using discretionary accruals as a proxy for earnings management, the results obtained indicated a negative effect of corporate environmental disclosure on earnings management. The results suggest also that women on boards are effective in their monitoring role. Indeed, findings show that the effect of corporate environmental disclosure on earnings management is particularly stronger with the presence of women directors on the companies’ boards.

This study has two limitations. Firstly, the sample size is relatively small, which may limit the generalizability of our findings. Secondly, our earnings management indicator, based on estimates of accruals, may not perfectly reflect all streams of earnings management. Therefore, to reduce potential bias in these estimates, it would be useful to use other indicators, such as real earnings management.

The findings have several implications for regulatory, investors and academic researchers. For regulators, it is appropriate to promote several standards related to corporate environmental disclosure and earnings management. The results advise also the worldwide policy maker to give the importance of female roles to improve engagement firms in corporate environmental disclosure, so to be more transparent in their accounting practices to ensure that they are not engaging in unethical or fraudulent behavior. For investors, the results show that the existence of female directors on the board reduces earnings management. For academic researchers, it is interesting to explore the relationship between corporate environmental disclosure, women on the board, and earnings management.

This paper extends the existing literature by examining the moderating effect of women directors on the relationship between corporate environmental disclosure and earnings management in the European context.

This paper aims to examine the influence of the International Financial Reporting Standards (IFRS) adoption on corporate tax avoidance (CTA). In addition, this study aims to explore whether family ownership moderates the impact of IFRS adoption on CTA.

The authors used a sample of 1,856 firms from various countries around the world, covering the period between 2010 and 2022. To estimate the proposed econometric models, the authors applied both fixed and random effects regression methods.

The present findings show that IFRS adoption has a negative impact on CTA, as measured by the effective tax rate and book-tax differences. This negative impact is more pronounced in “common law” countries than in “civil law countries.” Additionally, the authors found that family ownership plays a moderating role by positively affecting the impact of IFRS adoption on CTA.

The findings have practical, regulatory and academic implications for fostering accountability and fairness in taxation. This study suggests that implementing IFRS reduces tax avoidance and emphasizes the need for firms to evaluate the implications of IFRS adoption on their tax-planning strategies. It highlights the importance of aligning financial reporting practices with international standards to enhance transparency and minimize tax avoidance opportunities. The differential impact of IFRS adoption between “common law” and “civil law” countries underscores the role of legal and regulatory frameworks. In addition, family ownership plays a significant role in shaping tax-planning strategies. From an academic perspective, this research provides a foundation for further exploration into the relationship between IFRS adoption and tax avoidance.

The existing literature has predominantly concentrated on examining the effect of IFRS adoption on CTA, and the empirical findings have been inconsistent. This study introduces a novel perspective by considering the moderating influence of family ownership in determining the impact of IFRS adoption on CTA.

This study aims to explore the possibility of using magnetic biochar composite (MBCC) derived from Heglig tree bark (HTB) powder (agricultural solid waste) and cobalt ferrite (CoFe₂O₄, CFO) for oil spill removal from seawater surface.

One-pot co-precipitation route was used to synthesize MBCC. The prepared materials were characterized by X-ray diffraction, scanning electron microscopy-energy dispersive X-ray spectroscopy, Fourier transform infrared spectroscopy. The densities of the prepared materials were also estimated. Crude, diesel engine and gasoline engine oils were used as seawater pollutant models. The gravimetric oil removal (GOR) method was used for removing oil spills from seawater using MBCC as a sorbent material.

The obtained results revealed that the prepared materials (CFO and MBCC) were able to remove the crude oil and its derivatives from the seawater surface. Besides, when the absorbent amount was 0.01 g, the highest GOR values for crude oil (31.96 ± 1.02 g/g) and diesel engine oil (14.83 ± 0.83 g/g) were obtained using MBCC as an absorbent. For gasoline engine oil, the highest GOR (27.84 ± 0.46 g/g) was attained when CFO was used as an absorbent.

Oil spill removal using MBCC derived from cobalt ferrite and HTB. Using tree bark as biomass (eco-friendly, readily available and low-cost) for magnetic biochar preparation also is a promising method for minimizing agricultural solid wastes (e.g. HTB) and obtaining value-added-products.

This paper aims to explore the relationship between CEO overconfidence and earnings management examined by the discretionary accruals and if this relationship is moderated by business ethics.

Data from a sample of 246 European firms selected from the Stoxx Europe 600 Index between 2010 and 2022 were used to test the model using panel data and multiple regressions. This paper considered the feasible generalized least squares (FGLS) estimation for linear panel data models. A multiple regression model is used to analyze the moderating effect of business ethics on the association between CEO overconfidence and earnings management. For robustness analyses, this paper included the alternative measure of the dependent variable and independent variable.

Using discretionary accruals as a proxy for earnings management, the empirical results show a positive relationship between CEO overconfidence and earnings management. Furthermore, the results suggest that business ethics negatively moderates the relationship between CEO overconfidence and earnings management.

This paper makes a significant contribution to stakeholders such as investors, financial decision-makers and auditors. It underscores the importance of integrating ethical considerations into corporate governance practices for fostering accountability and transparency. In addition, it highlights the moderating role of business ethics in transforming the positive effect of CEO overconfidence on earnings management into a negative impact. This emphasizes the pivotal role of ethical norms in financial decision-making processes and extends implications to standard setters and policymakers in the regulatory domain.

To the best of the authors’ knowledge, this is the first study to examine the moderating role of business ethics on the relationship between CEO overconfidence and earnings management in the European context. It is also the first study to document that business ethics can reduce the effect of CEOs’ biased behavior and their scope for discretion, thereby reducing the amount of earnings management. This study fills a research gap by extending the existing literature, which generally focuses on the impact of CEO overconfidence and earnings management.

This study aims to investigate the impact of dividend policy on a firm’s participation in corporate social responsibility (CSR)-related activities in the context of Pakistani firms. Furthermore, the role of the board governance mechanism in dividend policy-CSR is investigated.

The study’s sample consists of 115 nonfinancial Pakistan Stock Exchange-listed firms from 2010 to 2021. A multidimensional financial method is used to assess the firm’s CSR engagement, and dividend policy is assessed using the dividend payout ratio and dividend yield. The authors used the fixed effect model and the random effect model to fulfill the study’s objectives. Furthermore, the system-generalized method of moment estimation technique is used to test the robustness of the result. In addition, the authors perform reverse causality analysis and investigate the effect of financial constraints on the dividend policy–CSR relationship.

The authors find that dividend policy has a significant positive impact on CSR. The authors also find that dividend policy is significantly positively associated with components of CSR, i.e. donation, employee welfare and research and development. Furthermore, the authors find that the board governance mechanism strengthens this positive relationship between dividend policy and CSR.

The government and authorities must mandate or at least encourage enterprises to pay dividends as doing so not only keeps shareholders happy but also encourages firms to make CSR initiatives to balance stakeholders. Furthermore, the regulator should take steps to strengthen the board governance structure as it strengthens the positive dividend policy–CSR relationship.

Although little previous research has focused on the CSR-dividend policy link, the authors believe that this is the first study to look at the influence of dividend policy on CSR and the moderating impact of board governance mechanisms in an emerging country, namely, Pakistan.