Corporate governance has become an increasingly important determinant of organizational accountability, investor confidence, strategic decision-making, and sustainable corporate performance. Effective governance mechanisms are intended to reduce agency conflicts, strengthen managerial accountability, improve transparency, protect shareholders, and ensure that corporate resources are utilized efficiently. This study examines the relationship between corporate governance mechanisms and the financial performance of listed companies, with particular emphasis on board size, board independence, board gender diversity, CEO duality, audit committee independence, institutional ownership, managerial ownership, and board meeting frequency. Financial performance is represented by accounting-based and market-based indicators, including return on assets (ROA), return on equity (ROE), and Tobin’s Q.

The study develops an empirical panel-data framework based on secondary information obtainable from corporate annual reports, stock-exchange disclosures, financial databases, and corporate-governance reports. Agency theory, stewardship theory, stakeholder theory, and resource-dependence theory provide the theoretical foundations for explaining the relationship between governance structures and corporate outcomes. The proposed empirical models control for firm size, financial leverage, firm age, sales growth, and industry effects.

The analysis of the existing literature indicates that corporate governance can influence financial performance, but individual governance mechanisms do not necessarily produce uniform outcomes across companies, industries, and institutional environments. Board independence and effective audit oversight may strengthen monitoring and financial reporting quality, while excessively large boards can increase coordination costs. Board diversity can broaden expertise and perspectives, although empirical evidence concerning its direct financial-performance effect remains mixed. The paper concludes that corporate governance should be evaluated as an integrated system rather than through individual mechanisms in isolation. Strong governance structures combined with transparency, accountability, effective board monitoring, appropriate ownership structures, and strategic oversight can contribute to sustainable corporate financial performance.

Keywords: Corporate Governance, Financial Performance, Board Independence, Board Size, CEO Duality, Board Diversity, Audit Committee, Ownership Structure, ROA, ROE, Tobin’s