5.3 Agency Theory and Stewardship Theory

Key Takeaways

  • Jensen and Meckling (1976) defined total agency costs as monitoring costs plus bonding costs plus residual loss.
  • Residual loss is the dollar reduction in principal welfare from the divergence that remains after all cost-effective monitoring and bonding has been undertaken.
  • Agency theory prescribes independent monitoring: separation of chair and CEO, a majority-independent board, an audit committee, and equity-linked pay.
  • Stewardship theory (Donaldson and Davis, 1991) argues managers are intrinsically motivated stewards and advocates CEO duality to create unified, unencumbered command.
  • Agency and stewardship theories are not reconcilable at the level of board design, which is why examiners use them to test whether a candidate can argue both sides of a structural recommendation.
Last updated: September 2026

5.3 Agency Theory and Stewardship Theory

Core Insight: No single theoretical model captures the full complexity of corporate life. While Agency Theory dominates contemporary corporate law, financial economics, and regulatory codes (such as the ASX Principles), alternative perspectives—such as Stewardship Theory, Stakeholder Theory, Resource Dependency Theory, and Managerial Hegemony Theory—provide vital complementary insights into managerial motivation, board composition, and the socio-political responsibilities of modern business enterprises.


1. Agency Theory (Jensen & Meckling, 1976)

Theoretical Origins and Behavioral Assumptions

Agency Theory is the prevailing economic paradigm in corporate governance scholarship. Developed formally by Michael Jensen and William Meckling in their landmark 1976 paper, Theory of the Firm: Managerial Behavior, Agency Costs and Ownership Structure, the theory draws upon neoclassical economics, contract theory, and transaction cost economics.

Agency Theory is anchored in specific behavioral assumptions regarding human nature:

  • Homo Economicus (Rational Self-Interest): Human beings are rational, individualistic utility-maximizers whose primary motivation is self-interest.
  • Opportunism and Shirking: When unmonitored, individuals will pursue their personal interests, including opportunism, indolence (shirking), and private consumption, even when it breaches trust.
  • Risk Divergence: Managers and shareholders possess different risk preferences. Shareholders hold diversified investment portfolios and are generally risk-neutral toward firm-specific risk. Conversely, managers invest their undiversified human capital and personal reputation in a single firm, making them inherently risk-averse regarding corporate solvency, yet prone to short-term risk-taking when tied to option-based bonuses.

The Principal-Agent Relationship and Information Asymmetry

In corporate governance, the principal (the shareholder who provides capital) delegates decision-making authority to the agent (the executive manager who directs the business). Because the agent acts on behalf of the principal, a pure fiduciary relationship should exist. However, because agents are self-interested and control operational machinery, two profound informational failures emerge:

+-----------------------------------------------------------------------------------------+
|                         INFORMATION ASYMMETRY IN AGENCY THEORY                          |
+---------------------------------------+-------------------------------------------------+
|        1. ADVERSE SELECTION           |                2. MORAL HAZARD                  |
|        (Ex-Ante / Pre-Contractual)    |          (Ex-Post / Post-Contractual)           |
+---------------------------------------+-------------------------------------------------+
| * Occurs BEFORE the contract is signed| * Occurs AFTER the contract is signed           |
| * Hidden information / misrepresentation| * Hidden action / unobservable behavior         |
| * Principals cannot accurately verify | * Agents shirk duties, consume perquisites,     |
|   the true competence, diligence, or  |   build inefficient corporate empires, or divert|
|   integrity of managerial candidates  |   resources because principals cannot observe   |
| * Risk: Hiring incompetent or         |   daily managerial effort                       |
|   deceptive executives                | * Risk: Value destruction and managerial drift  |
+---------------------------------------+-------------------------------------------------+

The Tripartite Taxonomy of Agency Costs

Jensen and Meckling established that the principal-agent conflict is not cost-free. Total agency costs represent the sum of three distinct economic expenditures:

Total Agency Costs=Monitoring Costs+Bonding Costs+Residual Loss\text{Total Agency Costs} = \text{Monitoring Costs} + \text{Bonding Costs} + \text{Residual Loss}

  1. Monitoring Costs (Borne by the Principal):
    • Expenditures incurred by shareholders to supervise, measure, and constrain the behavior of managers.
    • Concrete Examples: Engaging independent external auditors to verify financial statements; establishing independent board committees (Audit, Risk); hiring executive search firms and external remuneration consultants; establishing internal compliance monitoring systems.
  2. Bonding Costs (Borne by the Agent):
    • Expenditures incurred by managers to provide credible guarantees to principals that they will not harm the principal's interests or that they will compensate the principal if they do.
    • Concrete Examples: Executives agreeing to contractual non-compete clauses; executives accepting performance-based remuneration structures with strict 'malus' and clawback provisions; managers publishing verified quarterly reporting statements; pledging personal assets or posting fidelity bonds.
  3. Residual Loss (The Inevitable Deadweight Loss):
    • The unavoidable dollar reduction in the principal's welfare resulting from the remaining divergence between the agent's decisions and decisions that would fully maximize the principal's wealth.
    • Concrete Examples: Despite extensive monitoring and bonding, a CEO may still select a slightly less profitable supplier because they are personal friends, or postpone an aggressive growth initiative to avoid personal stress. This lost economic potential constitutes residual loss.

Agency Theory Governance Mechanisms

To minimize agency costs, Agency Theory prescribes specific structural governance remedies:

  • Independent Board Oversight: The board must be dominated by independent Non-Executive Directors (NEDs) who have no commercial or personal ties to management, ensuring objective monitoring.
  • Separation of Chair and CEO: The Chief Executive Officer (management) must not serve simultaneously as Chairman of the Board (oversight). Combining the roles creates an insurmountable conflict of interest ("You cannot grade your own homework").
  • Incentive Alignment: Aligning managerial self-interest with shareholder wealth through long-term equity-based remuneration (shares, options with performance hurdles, and vesting periods).
  • The Market for Corporate Control: The external threat of a hostile takeover disciplines underperforming managers. If a management team destroys value, the share price falls, making the firm an attractive takeover target; the acquirer then fires incumbent management.

2. Stewardship Theory (Donaldson & Davis, 1991)

Theoretical Foundations and Behavioral Assumptions

Formulated by Australian management scholars Lex Donaldson and James H. Davis in 1991 (Stewardship Theory or Agency Theory: CEO Governance and Shareholder Returns), Stewardship Theory emerged as an explicit challenge to the pessimistic behavioural assumptions of Agency Theory. Grounded in organizational psychology and sociology, Stewardship Theory models corporate leaders not as opportunistic knaves, but as honorable stewards.

Key behavioral assumptions include:

  • Model of Man (Pro-Organizational and Collectivistic): Human beings are not motivated purely by financial self-interest. They derive deep fulfillment from organizational success, professional mastery, altruism, and the esteem of their peers.
  • Intrinsic Motivation: While financial compensation is necessary, managers are energized primarily by higher-order human needs (Maslow's hierarchy of needs): autonomy, self-actualization, achievement, and duty.
  • Identification and Alignment: A steward's personal goals are naturally aligned with organizational objectives. A steward believes that when the organization prospers, their personal reputation and standing prosper alongside it.
+-----------------------------------------------------------------------------------------+
|                       AGENCY THEORY VS STEWARDSHIP THEORY                               |
+---------------------------------------+-------------------------------------------------+
|        AGENCY THEORY (Jensen & Meckling)|     STEWARDSHIP THEORY (Donaldson & Davis)    |
+---------------------------------------+-------------------------------------------------+
| * Economic model of human behavior    | * Psychological & sociological model            |
| * Man is self-interested & opportunistic| * Man is pro-organizational & collectivistic   |
| * Extrinsic motivation (cash, bonuses)| * Intrinsic motivation (achievement, duty)     |
| * Managerial interests conflict with  | * Managerial interests naturally align with     |
|   shareholder interests               |   organizational success                        |
| * Board Role: MONITOR and POLICE      | * Board Role: EMPOWER, ADVISE and FACILITATE    |
| * Board Structure: Independent NEDs   | * Board Structure: Inside executive directors   |
| * CEO/Chair: SEPARATE (Never combine) | * CEO/Chair: COMBINED (CEO Duality is positive) |
| * Governance Cost: High monitoring    | * Governance Cost: Low monitoring; high trust   |
+---------------------------------------+-------------------------------------------------+

Governance Structures Under Stewardship Theory: The Value of CEO Duality

Because Stewardship Theory presumes alignment rather than conflict, its structural recommendations diverge diametrically from Agency Theory:

  • Facilitation over Monitoring: The board of directors does not exist to police or distrust management. Excessive monitoring, intrusive compliance bureaucracy, and adversarial audit committees demoralize stewards and stifle entrepreneurial initiative.
  • CEO Duality (Combined Chair and CEO): While Agency Theory vehemently condemns CEO duality, Stewardship Theory actively endorses it. Combining the CEO and Board Chair roles provides unified, unambiguous leadership, eliminates organizational confusion, removes friction between the boardroom and executive suite, and enables rapid strategic decision-making.
  • Inside Directors: Boards benefit from high proportions of executive (inside) directors who possess deep operational, technical, and industry knowledge, rather than detached independent outsiders who lack contextual insight.

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Theoretical Lenses on the Board of Directors
Test Your Knowledge

According to the taxonomy of agency costs formulated by Jensen and Meckling (1976), which of the following best defines 'residual loss'?

A
B
C
D
Test Your Knowledge

Which of the following corporate governance structures is strongly advocated by Stewardship Theory (Donaldson & Davis, 1991), in direct contrast to Agency Theory?

A
B
C
D