Purpose: The purpose of the study is to systematically review and examine the effectiveness of corporate governance mechanisms in restraining earnings management among the listed firms of the Casablanca Stock Exchange. Research methodology: In this study, we used the modified Jones model to calculate discretionary accruals. Our sample comprises 27 firms covering the period from 2016 to 2018, analyzed by the EGLS estimator. Results: Our empirical results show that gender diversity, board size, and audit committee independence reduce the managers' discretion. Simultaneously, we found a significantly positive association between earning management and different corporate governance characteristics such as CEO duality, institutional investor ownership, and family ownership. We do not find any evidence that audit committee size, ownership concentration, and managerial ownership significantly influence discretionary accruals. Limitations: This study's main limitation is that we did not address the direction of discretionary accruals, which does not allow us to detect the motivational aspects behind earnings management. Contribution: The results of this study will help Moroccan authorities in their formulation of an appropriate regulatory framework because very few studies have been conducted in this area in the case of the Moroccan listed companies, especially with a large set of governance variables as our empirical model. Keywords Accruals; Board of directors; Corporate governance; Earnings management; Ownership structure

Purpose: The present paper aims to examine the impact of corporate governance mechanisms on earnings management extent in the Moroccan banking sector. Research methodology: This research investigates the relationship between listed banks' governance mechanisms and earnings management in the CSE over the period 2017-2020. This study relies on a two-step quantitative approach, which consists firstly of estimating discretionary loan loss provisions to measure EM, then presenting the association between banks’ governance mechanisms and discretionary loan loss provisions. Results: The findings indicate that board size, gender diversity, audit committee’s independence, and state ownership constraint EM practices among the Moroccan listed banks. While other governance mechanisms, such as institutional ownership and board activity, seem to have no significant effect on restraining managers’ discretionary behavior. Limitations: Many qualitative and quantitative factors could influence discretionary loan loss provisions and not only the used variables in this research. Contribution: This research reveals the need to maintain the vigilant supervision of the regulatory framework to limit these opportunistic practices in the local banking industry. Also, our study has important implications for establishing a new set of governance requirements such as board diversity in Morocco.