Corporate governance provides principles for governing companies in a value-based manner to enhance shareholder value while considering other stakeholders. Key principles include equitable treatment of shareholders, stakeholder interests, disclosure, integrity, and board responsibilities. Good corporate governance benefits companies through competitive advantages, efficiency, protecting shareholder interests, and ensuring compliance. It also benefits the economy by increasing access to financing and investment, allocating resources efficiently, and reducing financial crisis risks. Adhering to strong corporate governance practices helps companies attract capital and investment.