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Capital Structure: How to Fund the Firm's Assets

• Definition: Capital structure refers to how a firm finances its overall operations and growth by using different sources of funds, primarily debt and equity.

Key Concepts

• Leverage: The use of debt in a firm's capital structure to amplify returns to shareholders.

• Capital Restructuring: Changing the financial leverage of a firm without altering the underlying assets held by the firm.

• Manager's Objective: To maximize stockholder wealth through strategic funding decisions.

Capital Markets

• Separation of Decisions: According to Fisher, capital markets separate operating decisions from financing decisions.

• Financing Objective: To choose a capital structure that minimizes the Weighted Average Cost of Capital (WACC).

Modigliani-Miller (MM) Theorem Under Assumptions

• Proposition I: The capital structure is irrelevant in a perfect market.

  • Leverage does not impact total firm value or WACC.

  • Cost of Equity: While leveraging increases the cost of equity, it does not affect the WACC.

• Optimal Capital Structure: Achieved through a balance between the benefits and costs of leverage.

  • Benefits: Corporate taxes subsidize debt financing, enhancing value.

  • Costs: High levels of debt can lead to financial distress which destroys firm value.

• Tradeoff Theory: Suggests an optimal level of leverage exists where the marginal benefit of debt equals its marginal cost.

Financial Impacts of Debt

• Effects of Interest: Interest expense reduces net income and taxable income but does not affect Earnings Before Interest and Taxes (EBIT).

• Debt Financing: Decreases reliance on equity capital.

• Leverage Outcomes:

  • Leverage increases expected Earnings Per Share (EPS) and Return on Equity (ROE).

  • Increased risk due to leverage results in a higher cost of equity.

MM Proposition II: Leverage and Cost of Equity

• Prop II Explanation: Leveraging affects the cost of equity:

  • $r<em>e = r</em>A + (r<em>A - r</em>D) rac{D}{E}$

  • This compensates equity holders for the additional business and financial risks associated with increased leverage.

Benefits of Debt

• Tax Advantages: Debt financing reduces corporate tax liabilities, thereby increasing the overall value of the firm.

  • Present Value of Debt Tax Shields: $PV(Debt ext{ Tax Shields}) = T_C imes Debt$

  • Leveraged Firm Value: $V<em>L = V</em>U + T_C imes D$ where:

    • $V_L$ = Value of the levered firm

    • $V_U$ = Value of the unlevered firm

    • $D$ = Debt

  • Equity Gains: $E = V_L - D$

• Impact on WACC: WACC decreases due to the after-tax cost of debt.

  • $WACC = rac{D(1-T_C)}{D + E}$

  • After-tax debt reduces agency problems which can drive operational efficiencies.

• Management Signals: Taking on debt signals that management expects to meet obligations, hence potentially enhancing firm credibility.

Costs of Debt

• Bankruptcy Costs: High levels of debt may lead to significant financial distress costs, including:

  • Direct bankruptcy costs: Legal fees, administrative expenses.

  • Operational Costs: Managers’ focus shifts from business operations to financing.

  • Business Disruptions: Under distress, firms face interruptions in sales, employee morale issues, and loss of key employees.

  • Additional issues: Inability to purchase goods on credit, potential fire sales of assets below their true value.

Tradeoff Between Benefits and Costs of Debt

• Graphical Analysis: A graph may depict the relationship between the value of the firm ($V_L$), the optimal debt level (denoted as $D^<em>$), and the weighted average cost of capital (WACC) across different cases of Modigliani-Miller propositions (with and without taxes).

• Cases:

  • Case I: MM Proposition without taxes

  • Case II: MM Proposition with taxes

  • Case III: Static theory of capital structure.

  • Optimal debt-equity ratio identified as $rac{D}{E}$.