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The goal of this study is to investigate the predictive performance of the machine and deep learning methods in predicting the CAC 40 index and its 40 constituent prices of the French stock market during the COVID-19 pandemic. The study objective in forecasting the CAC 40 index is to analyze if the index and the individual prices will preserve the continuous increase they acquired at the beginning of the administration of vaccination and containment measures or if the negative effect of the pandemic will be reflected in the future.

The authors apply two machine and deep learning methods (KNN and LSTM) and compare their performances to ARIMA time series model. Two scenarios have been considered: optimistic (high values) and pessimistic (low values) and four periods are examined: the period before COVID-19 pandemic, the period during the COVID-19, and the period of vaccination and containment. The last period is divided into two sub-periods: the test period and the prediction period.

The authors found that the KNN method performed better than LSTM and ARIMA in forecasting the CAC 40 index for both scenarios. The authors also identified that the positive effect of vaccination and containment outweighs the negative effect of the pandemic, and the recovery pattern is not even among major companies in the stock market.

The study empirical results have valuable practical implications for companies in the stock market to respond to unexpected events such as COVID-19, improve operational efficiency and enhance long-term competitiveness. Companies in the transportation sector should consider additional investment in R&D on communication and information technology, accelerate their digital capabilities, at least in some parts of their businesses, develop plans for lights out factories and supply chains to keep pace with changing times, and even include big data resources. Additionally, they should also use a mix of financing sources and securities in order to diversify their capital structure, and not rely only on equity financing as their share prices are volatile and below the pre-pandemic level. Considering portfolio allocation, the transportation sector was severely affected by the pandemic. This displays that transportation equities fail to be a candidate as a good diversifier during the health crisis. However, the diversification would be worth it while including assets related to the banking and industrial sectors. On another strand, the instability of this period induced an informational asymmetry among investors. This pessimistic mood affected the assets' value and created a state of disequilibrium opening up more opportunities to benefit from potential arbitrage profits.

The impact of COVID-19 on stock markets is significant and affects investor behavior, who suffered amplified losses in a very short period of time. In this regard, correct and well-informed decision-making by investors and other market participants requires careful analysis and accurate prediction of the stock markets during the pandemic. However, few studies have been conducted in this area, and those studies have either concentrated on some specific stock markets or did not apply the powerful machine learning and deep learning techniques such as LSTM and KNN. To the best of our knowledge, no research has been conducted that used these techniques to assess and forecast the CAC 40 French stock market during the pandemic. This study tries to close this gap in the literature.

This study aims to examine the relationship between corporate social responsibility (CSR) award and sustainability assurance levels for the French CAC 40 companies.

A sample of 57 French companies in the CAC 40 index corresponding to 448 observations was analyzed between 2008 and 2020 using an ordinal regression.

The main results conclude that the inclusion in the Dow Jones Sustainability Index World, the CSR award and the introduction of the Grenelle 2 law have a significant influence on sustainability assurance levels. However, incentive compensation does not appear to be relevant to explain sustainability assurance levels.

The present study focuses on a sample, limited to companies belonging to the CAC 40 index. To enhance the understanding of sustainability assurance levels, this research may include other global sustainability indices, such as the MSCI World and the FTSE4Good World, in the CSR awards.

This study could be useful for audit practitioners, leading them to reconsider their evaluation methods and take into account CSR incentives for a more objective analysis. Regulators should investigate the current CSR issues to improve CSR disclosure standards. Finally, these findings could motivate other researchers to expand the scope of the research to diverse contexts.

This study helps fill the gap existing in sustainability assurance literature by highlighting the relationship between CSR rewards and sustainability assurance levels.

The research objectives of this chapter are threefold. First, we explore what is the current status of corporate water accounting tools and methodologies. Second, we develop a framework for analyzing corporate water accounting and reporting. Third, we investigate what French CAC 40 companies account for and report in relations to the water challenge.

We collected annual and sustainability reports from all CAC 40 companies as well as their water Carbon Disclosure Project (CDP) responses when available. We also collected all publically available corporate water accounting methodologies to assess the international water accounting field. We coded the data according to our designed framework via qualitative data analysis software.

Although water is seen as equally important to climate change (Association of Chartered Certified Accountants (ACCA), 2009), French multinationals have a very immature reporting on this topic. Most still do not report to the water disclosure questionnaire of CDP in 2014 and rely on basic figures such as global water consumption. We analyzed the multiple water accounting, reporting, and risk assessment frameworks that have mushroomed since 2000, and question the impact of this fragmented field on the maturity of the water performance reporting by French companies.

The developed framework for analysis of water reporting can be used for sustainability teaching at university level.

We developed the first comprehensive analytical framework for water corporate reporting assessment. Moreover, this research is the first comprehensive study of water reporting in Europe. We therefore contribute to extend our comprehension of corporate maturity in water stewardship and water performance reporting.

The purpose of this paper is to bridge the gap between the existing theoretical and empirical studies by examining the asymmetric return–volume relationship. Indeed, the authors aim to shed light on the return–volume linkages for French-listed small and medium-sized enterprises (SMEs) compared to blue chips across different market regimes.

This study includes both large capitalizations included in the CAC 40 index and listed SMEs included in the Euronext Growth All Share index. The Markov-switching (MS) approach is applied to understand the asymmetric relationship between trading volume and stock returns. The study investigates also the causal impact between stock returns and trading volume using regime-dependent Granger causality tests.

Asymmetric contemporaneous and lagged relationships between stock returns and trading volume are found for both large capitalizations and listed SMEs. However, the causality investigation reveals some differences between large capitalizations and SMEs. Indeed, causal relationships depend on market conditions and the size of the market.

This paper explains the asymmetric return–volume relationship for both large capitalizations and listed SMEs by incorporating several psychological biases, such as the disposition effect, investor overconfidence and self-attribution bias. Future research needs to deepen the analysis especially for SMEs as most of the literature focuses on large capitalizations.

This empirical study has fundamental implications for portfolio management. The findings provide a deeper understanding of how trading activity impact current returns and vice versa. The authors’ results constitute an important input to build and control trading strategies.

This paper fills the literature gap on the asymmetric return–volume relationship across different regimes. To the best of the authors’ knowledge, the present study is the first empirical attempt to test the asymmetric return–volume relationship for listed SMEs by using an accurate MS framework.

The purpose of this paper is to examine the degree of integration of reference documents (RD) produced by French CAC 40 listed companies to determine whether they have initiated the adoption of an integrated reporting (IR) approach. In particular, the author has examined how the French regulation shapes the integration of sustainable development issues within the business practices of these companies.

On the basis of content analysis of 279 RD over nine years (2006-2014), the author has examined the extent and the quality of the IR practice with the help of three criteria (strategy, governance and commitment of stakeholders). Evidence of the existence of an integration practice is thus sought using 34 CAC 40 companies having the obligation, according to various regulations, to include in their management report information relating to questions of sustainable development (SD).

There is a variation between the CAC 40 companies regarding integration of SD issues in the core business. As a result of the analysis, the author has observed that 41% of companies in our sample integrate issues of SD to more than 90%, whereas other companies consider concerns relating to SD as subsidiary. All of the companies (100%) have put in place policies to manage the environmental and social governance aspects, assuming recognition of the importance of these issues for the companies. Yet only a few (41%) went further than the mere declaration of intent and have revised their business processes to reflect the taking into account of all the factors which contribute to the process of value creation. On the whole, the principle of connectivity that perfectly defines the integrated character of a report is only moderately respected by the companies in the sample.

The methodology deployed in this study to identify the integration practices of listed companies in France can be replicated by other researchers who would endeavor to assess the IR practices of companies from other countries. For regulatory agencies, this study provides evidence on how the various regulations that make up a national business system shape company reporting and allow informing different categories of stakeholders.

This research provides the empirical result of a longitudinal study of the degree of integration of RDs in the context of an environment regulating non-financial reporting. The construction of a set of criteria characterizing the degree of integration of SD issues at the heart of businesses is another innovative approach of this study.

This study aims to analyze the relationship between a firm’s use of aggressive tax planning and board of directors (independence and size) and audit committee characteristics (independence and expertise).

This study used archival data from 35 non-financial firms’ French firms listed on the CAC 40 over a period of 5 years (2013–2018).

This study shows that measures of board size are negatively related to tax aggressiveness. A broader board helps reduce tax aggressiveness, as having more members can improve board performance. Indeed, more members can contribute to a better assessment of tax risks and detect risky tax strategies.

The main limitation of this study is the small sample. The authors limited the observations to 2018 because the corporate tax rate in France changed in 2019. Such a time window casts homogeneity on the current study. Examining universal registration documents, it has been noted that companies have only recently become interested in disclosure of tax risk.

Knowing the characteristics of the board and audit committees can give a signal to stakeholders about the potential risk bearing on aggressive tax planning. This study provides evidence that could help the board governance committees integrate the right profiles and to raise awareness among the members of the board of directors and the audit committee to play their role (monitoring function or advisory function) about tax risk management.

According to the authors’ knowledge, this study is the first to provide empirical evidence regarding the effect of the board of directors and audit committee characteristics on tax aggressiveness.

This paper aims to examine the impact of CEO (chief executive officer) compensation and CEO attributes on the level of tax aggressiveness of French companies.

The sample comprises 180 firm-year observations of 40 companies listed on the CAC 40 during the period ranging from 2008 to 2018. For the purpose of overcoming the problems of heteroscedasticity and autocorrelation, the authors apply the generalized least square panel regression.

This study’s results corroborate the importance of CEO compensation and CEO attributes as determinants of tax aggressiveness. In addition, the authors come up with the fact that CEO compensation has a negative effect on tax aggressiveness, and that older CEOs and CEOs with accounting expertise are negatively linked with tax aggressiveness. The authors also find out that there is a positive relationship between the CEO tenure and tax aggressiveness. Moreover, the authors report that foreign CEOs are more likely to engage in tax aggressiveness practices than local CEOs.

The unavailability of all annual reports and the use of only one proxy to measure tax aggressiveness present limitations. This study shows significant implications for shareholders, regulators and researchers. As a matter of fact, shareholders will observe the effect of appointing a foreign CEO on the tax aggressiveness level. This study may also provide regulators with new ideas regarding the role of the CEO and its impact on aggressive decision-making. And it brings forth new insight for researchers through adding a foreign CEO as a new determinant of tax aggressiveness.

According to the authors’ knowledge, this study is the first to provide empirical evidence regarding the effect of both CEO compensation and CEO attributes on tax aggressiveness. It also looks into the impact of a foreign CEO on tax aggressiveness.

An increasing number of business organizations around the world are engaged in the accounting reporting on non-financial performance aspects, mainly within the field of environmental responsibility. The purpose of this paper is to assess the association between environmental disclosure and environmental performance and examine the financial attributes of companies using a composite disclosure index to investigate the status of the environmental disclosure practices of the top 40 companies operating in France.

The sample used in this study consists of the 40 largest companies operating in France (index CAC 40).

The findings of the study show that environmental disclosure is positively associated to environmental performance. Financial attributes, such as firm size, the need for capital, profitability and capital spending, are positively associated with environmental disclosure quality. Equally, a high quality of environmental disclosure will reflect the effectiveness of corporate governance and would tend to face fewer difficulties in accessing capital markets. The authors found that firms revealed on healthcare and gas oil business sector disclose more environmental information than other industries.

A web-based search was performed during the fourth quarter of 2014, locating the corporate websites of the sample firms. The sample period is 2011-2013 (108 firm-year observations).

In this part of the research, we consider the costs of the turnout decision and evaluate whether the introduction of the Shareholder Rights Directive (2007/36/EC), which aimed at lowering voting costs, has had a positive impact on (small) shareholder attendance. For this, we investigate turnout rates in Belgium, France and the Netherlands. We find strong indications that the Shareholder Rights Directive indeed had a positive impact on (small) shareholder attendance in these countries. The findings of this study may encourage policy makers to further reduce the costs of (cross-border) voting. It shows that the introduction of the new Shareholder Rights Directive may contribute to (small) shareholder engagement.

The purpose of this paper is to understand how external auditors communicate with audit committees (ACs).

A total of 53 interviews were conducted with participants in the ACs of 22 French companies listed in the CAC 40 index, including external and internal auditors, CFOs, AC chairpersons, and members.

In multiple accountability relationships, external auditors sit in the middle. They therefore use impression management (IM). While AC members expect them to be transparent, they are also expected to preserve managers’ “face” by sustaining impressions of consistency. The construction of impressions of consistency and transparency takes place mainly backstage, through time-consuming teamwork shared by auditors and CFOs. External auditors have power to make things transparent, but the use of such power is tricky, because it can damage relationships with CFOs. External auditors have a difficult “discrepant role” (Goffman, 1959) to play.

This study provides insights into what occurs behind the scenes with ACs, which can help regulators think deeper about relationships between external auditors and ACs.

This research makes contribution to governance, IM, and AC literature. It analyzes the AC process from external auditors’ – rather than AC members’ – points of view. Highlighting the AC process backstage, it shows that IM can be carried out collectively toward an internal rather than external audience and demonstrates that external auditors practice rather than limiting IM.