What is Pecking Order Theory (POT)?

Pecking Order Theory, introduced by Donaldson in 1961 and later formalized by Myers and Majluf (1984), explains how firms prioritize their sources of financing. Rather than targeting an optimal capital structure, firms follow a hierarchical preference:

  1. Internal financing (retained earnings)
  2. Debt issuance
  3. Equity issuance (as a last resort)

This hierarchy is driven by information asymmetry between managers and external investors, and the signaling effects associated with different financing choices.


Core Assumptions and Mechanisms

1. Information Asymmetry

Managers possess superior knowledge about the firm’s value and prospects. When external financing is required, investors may interpret the issuance of equity as a signal that the firm is overvalued, leading to adverse selection and potential undervaluation.

2. Cost of Financing

  • Retained earnings are the least costly, as they involve no issuance or signaling costs.
  • Debt is next, as it sends a positive signal (confidence in future cash flows) and is less sensitive to valuation uncertainty.
  • Equity is most expensive due to dilution, issuance costs, and negative market perception.

Theoretical Linkages

A. Signaling Theory

Pecking Order Theory is deeply rooted in signaling theory. Equity issuance may signal managerial pessimism, while debt issuance can signal confidence. This aligns with Ross’s (1977) model, where capital structure choices convey private information to the market.

B. Trade-Off Theory

While Trade-Off Theory suggests firms balance the tax benefits of debt against bankruptcy costs to reach an optimal capital structure, POT rejects the notion of a target ratio. Instead, it emphasizes managerial behavior under uncertainty and financing flexibility.

C. Agency Theory

POT indirectly addresses agency costs. By avoiding equity issuance, managers reduce the dilution of ownership and potential conflicts with new shareholders. However, excessive reliance on debt can increase agency costs of debt (e.g., risk shifting, underinvestment).


Strategic Implications for Business

  • Capital Raising Strategy: Firms may delay investment or scale projects to fit internal funding, preserving financial autonomy.
  • Market Timing: Managers may deviate from POT during favorable market conditions (e.g., equity issuance when valuations are high), blending POT with market timing theory.
  • Financial Signaling: The choice of financing can be used strategically to influence investor perception and market valuation.

Practical Example: Application in a Mid-Cap Industrial Firm

Case: Bluescope Steel Limited (ASX: BSL)
As a major Australian steel producer, Bluescope operates in a capital-intensive and cyclical industry. Suppose the firm identifies an opportunity to expand its U.S. operations through a new galvanizing line.

Following Pecking Order Theory:

  • First, it would use retained earnings from recent profitable quarters to fund the project.
  • Second, if internal funds are insufficient, it might issue corporate bonds or secure a term loan, signaling confidence in future cash flows.
  • Third, equity issuance would be avoided unless absolutely necessary, as it could signal overvaluation and dilute existing shareholders.

This approach helps Bluescope maintain investor confidence, minimize financing costs, and retain strategic control, especially important in volatile commodity markets.