📖 董事会结构与职能

Corporate Finance

I. Lesson Focus

II. The Problem

A listed company suddenly faces a major accounting scandal, causing its stock price to plunge 30%. Investors discover that several inside directors have close family ties to management and that independent directors make up only 25% of the board, with the audit committee entirely controlled by insiders. Why does such a board structure lead to governance failure? In the CFA exam, how do you evaluate whether a board’s structure is effective, and what core duties must a board perform to genuinely protect shareholder interests?

III. Corporate Governance and Core Board Concepts

Corporate governance refers to the system of rules, practices, and processes by which a company is directed and controlled. Its primary objective is to mitigate the principal-agent problem, in which management (the agent) may pursue personal interests at the expense of shareholders (the principals). The board of directors is the central mechanism in corporate governance, acting on behalf of shareholders to oversee management.

Key board responsibilities include: - Setting corporate strategy and monitoring its implementation - Hiring, evaluating, and terminating the chief executive officer (CEO) - Reviewing and approving major transactions and financial reports - Ensuring compliance with laws, regulations, and ethical standards - Protecting shareholder rights, particularly those of minority shareholders

IV. Main Types of Board Structures

1. One-Tier (Unitary) Board
   Most common in common-law countries such as the United States and United Kingdom. The board simultaneously performs both oversight and executive functions and includes executive directors, non-executive directors, and independent directors.

2. Two-Tier Board
   Typical in civil-law countries such as Germany and Japan. It consists of a supervisory board (composed entirely of non-executive directors responsible for oversight) and a management board (responsible for day-to-day operations).

3. Hybrid Structures
   Some jurisdictions permit companies to choose between one-tier and two-tier models.

Definition of Independent Directors:
Directors who have no material relationship with the company, its management, or controlling shareholders that could compromise their objectivity. Common independence criteria include: - Not having served as an executive in the past three years - No significant business dealings with the company - No immediate family members serving as executives - Share ownership generally below 1%

V. Optimal Board Size and Composition

• Size: Best practice suggests 8–12 members. Too small a board lacks diversity; too large reduces decision-making efficiency.
• Independent Director Proportion: Best practice calls for independent directors to comprise at least two-thirds or a clear majority (>50%). CFA curriculum stresses that independent directors should form the majority of the board.
• Key Committees: Boards typically establish specialized committees that should be composed entirely or predominantly of independent directors:
• Audit Committee: Oversees financial reporting, internal controls, and external auditor appointment
• Compensation (Remuneration) Committee: Designs executive compensation policy
• Nominating / Corporate Governance Committee: Handles director nominations and board evaluations

VI. Detailed Breakdown of Board Duties

Directors owe fiduciary duties that include:

1. Duty of Loyalty: Directors must act in the best interest of the company and avoid self-dealing.
2. Duty of Care: Directors must act with the care that a reasonably prudent person would exercise, obtaining sufficient information before making decisions.
3. Oversight Responsibilities: Include risk oversight, compliance monitoring, and ESG supervision.
4. Strategic Role: Approve long-term strategy and capital allocation decisions (e.g., dividend policy, mergers and acquisitions).
5. Crisis Management: Play a central role during hostile takeovers, litigation, or reputational crises.

VII. Characteristics of Effective Corporate Governance

• Separation of the roles of chairman and CEO
• Regular board self-assessments
• Directors possess relevant expertise and industry experience
• Transparent disclosure practices
• Shareholder ability to nominate directors (proxy access)
• Anti-takeover provisions that do not excessively entrench management

Worked Cases

Case 1: Independent Director Percentage

A company has an 11-member board: 3 executive directors, 2 non-executive directors with business ties to the company, and 6 independent directors. Calculate the percentage of independent directors and assess compliance with best practice.

Solution:
Independent director percentage = 6 / 11 ≈ 54.55%.
While this exceeds 50%, it falls short of the two-thirds (66.7%) best-practice benchmark. If the audit committee is chaired and dominated by these independent directors, governance is marginally acceptable but still requires improvement in independence.

Case 2: Risks of Combined Chairman-CEO Role

ABC Corp.’s chairman also serves as CEO. Over three years, ROE has fallen from 18% to 9% while executive compensation rose 42%. Independent directors represent only 40% of the board. Analyze the governance issues.

Solution:
Combining the roles impairs objective oversight because the chairman may exploit information asymmetry to influence the board. The low proportion of independent directors weakens the compensation committee’s ability to restrain excessive pay, creating a classic agency problem. Investors should consider sponsoring a shareholder proposal to separate the roles.

Case 3: Audit Committee Failure

XYZ Corp.’s five-member audit committee includes three former executives, one university classmate of the CEO, and only one independent director. The external auditor has issued qualified opinions for two consecutive years, yet the committee has neither replaced the auditor nor strengthened internal controls.

Solution:
The committee lacks independence, violating best practice that the audit committee be composed entirely of independent directors. The board has breached its duty of care and may face shareholder lawsuits and regulatory sanctions. The correct action is to immediately reconstitute the committee with fully independent members and disclose any conflicts in financial reports.

Traps

Key Formulas

• Independent director ratio = Number of independent directors / Total board members
• Board effectiveness ≈ f(independence, expertise, appropriate size, information symmetry)
• Trend in ROE combined with trend in executive compensation is a red flag for governance weakness
• Agency costs = Monitoring costs + Residual loss
• Best-practice independent director proportion ≥ 2/3

Practice Questions

Q1. In a one-tier board structure, best practice requires independent directors to comprise at least:
A. 25%
B. 33%
C. A majority (>50%)
D. 100%

Q2. Which of the following is NOT a core board responsibility?
A. Setting corporate strategy
B. Making day-to-day operating decisions
C. Hiring and firing the CEO
D. Reviewing financial reports

Q3. A board has 11 members: 5 independent directors, 4 executive directors, and 2 non-independent non-executive directors. The percentage of independent directors is closest to:
A. 36%
B. 45%
C. 55%
D. 64%

Q4. In a two-tier board system, the body responsible for supervising management is the:
A. Management board
B. Supervisory board
C. Audit committee
D. Shareholders’ meeting

Q5. Which situation most clearly violates a director’s duty of care?
A. Making a decision without obtaining sufficient information
B. Owning a small number of company shares
C. The chairman also serving as CEO
D. A board size of nine members

Q6. Which statement about the audit committee is most accurate?
A. It may be chaired by the company’s CFO
B. It should be composed entirely or predominantly of independent directors
C. Its primary duty is to set corporate strategy
D. Members need not possess financial expertise

Q7. The most typical sign of corporate governance failure is:
A. Separation of chairman and CEO roles
B. Executive compensation that is severely disconnected from company performance
C. Independent directors comprising 70% of the board
D. Regular board self-evaluations

Q8. When assessing corporate governance quality, an analyst should primarily focus on:
A. Average age of board members
B. Proportion of independent directors and committee composition
C. Number of board meetings held
D. Nationality diversity of directors

Answers

Takeaways

• The board’s central objective is to reduce principal-agent conflicts and protect shareholders
• One-tier boards combine oversight and execution; two-tier boards separate them
• Independent directors should comprise at least a majority and ideally two-thirds or more
• Audit, compensation, and nominating committees should be predominantly independent
• Directors owe both duty of loyalty and duty of care
• Separation of chairman and CEO, transparent disclosure, and regular board evaluations are hallmarks of effective governance