17.1 The Concept of Capital Structure

3 min readjune 18, 2024

Companies need money to operate and grow. They can get it through debt, like loans or bonds, or equity, by selling shares. Each method has pros and cons. Debt is often cheaper due to tax benefits, but it comes with fixed payments and risk.

The mix of debt and equity a company uses is its . This affects its , which is the minimum return needed to satisfy investors. Understanding helps managers make smart investment decisions and balance risk with potential rewards.

Sources of Capital and Capital Structure

Sources of capital on balance sheets

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  • involves borrowing money from banks or other financial institutions or issuing bonds
    • on bonds are tax-deductible, effectively reducing the cost of debt
    • In the event of bankruptcy, debt holders have priority over equity holders in claims on company assets
  • involves raising money by issuing or
    • Common stock represents ownership in the company but provides no fixed payments to stockholders
    • is a hybrid security with characteristics of both debt and equity, offering fixed dividend payments but no voting rights
  • are profits reinvested in the company, avoiding external financing costs

Significance of cost of capital

  • Cost of represents the minimum return a company must earn on its investments to satisfy its investors, reflecting the opportunity cost of investing in a particular project or company
  • calculates the overall cost of capital by considering the proportions and costs of each financing source using the formula: WACC=wdrd(1t)+wereWACC = w_d r_d (1-t) + w_e r_e
    • wdw_d: weight of debt
    • rdr_d: cost of debt
    • tt: corporate tax rate
    • wew_e: weight of equity
    • rer_e: cost of equity
  • WACC serves as a for investment decisions
    • Projects with returns above the WACC create value for the company (positive NPV)
    • Projects with returns below the WACC destroy value (negative NPV)
  • WACC is crucial in decisions, helping managers evaluate potential investments

Analyzing Capital Structure

Analysis of capital structure weights

  • Calculate the total value of the company by adding the of equity and the market value of debt
  • Determine the weight of each financing source
    1. Weight of debt = Market value of debt / Total value of the company
    2. Weight of equity = Market value of equity / Total value of the company
  • Interpret the weights to understand the company's capital structure
    • A higher debt weight indicates a more leveraged capital structure, potentially leading to higher financial risk and volatility in earnings but benefiting from the of debt
    • A higher equity weight indicates a more conservative capital structure, resulting in lower financial risk and more stable earnings but forgoing the tax benefits of debt financing

Impact of Financial Leverage and Agency Costs

  • refers to the use of debt to finance a company's operations, which can amplify returns but also increase risk
  • Higher can lead to increased , as conflicts of interest may arise between shareholders and debt holders
  • suggests that changes in capital structure can convey information to the market about a company's future prospects

Key Terms to Review (42)

Agency Costs: Agency costs refer to the expenses and potential losses that arise from the inherent conflict of interest between a company's management (the agent) and its shareholders (the principal). These costs stem from the separation of ownership and control, where managers may make decisions that prioritize their own interests over those of the shareholders they are meant to serve.
Bluebonnet Industries: Bluebonnet Industries is a manufacturing company specializing in consumer electronics and known for its robust capital structure. The company employs a strategic mix of debt and equity to fund its operations and growth initiatives.
Capital: Capital is the financial assets or resources that firms use to fund their operations and growth. It can come from various sources, including equity, debt, and retained earnings.
Capital Budgeting: Capital budgeting is the process of evaluating and selecting long-term investments or projects that are expected to generate returns for a business over multiple years. It involves analyzing the costs, risks, and potential benefits of various investment options to determine the most advantageous use of a company's limited financial resources.
Capital structure: Capital structure is the mix of debt and equity that a firm uses to finance its operations and growth. It directly impacts the company's risk, cost of capital, and overall financial strategy.
Capital Structure: Capital structure refers to the mix of debt and equity financing that a company uses to fund its operations and investments. It represents the relative proportions of different sources of capital, such as short-term debt, long-term debt, and equity, that a company employs to finance its assets and activities. The capital structure of a company is a crucial aspect of corporate finance, as it directly impacts the company's financial risk, cost of capital, and ultimately, its overall value and performance.
Common Stock: Common stock represents a type of security that signifies ownership in a corporation. As the most basic form of corporate equity, common stock grants the holder voting rights and a claim on a portion of the company's profits and assets.
Corporate Bonds: Corporate bonds are debt securities issued by private corporations to raise capital for their operations, expansion, or other business activities. They represent a loan from investors to the issuing company, with the company agreeing to pay a specified interest rate and repay the principal amount at a future date.
Cost of Capital: The cost of capital refers to the required rate of return that a company must earn on its investments to maintain the value of its stock and attract capital from investors. It represents the minimum acceptable rate of return for a company's investment projects, taking into account the risks associated with the company's capital structure and the opportunity cost of the funds invested.
Coupon Payments: Coupon payments refer to the periodic interest payments made by a bond issuer to the bond holder. These payments are a key feature of fixed-income securities and represent the return that investors receive for lending their money to the bond issuer.
Debt Capital: Debt capital refers to the funds raised by a company through the issuance of debt instruments, such as bonds, loans, or other debt securities. It represents the capital that a business obtains from lenders, which must be repaid with interest over a specified period of time. Debt capital is a crucial component of a company's capital structure and plays a significant role in financing its operations and growth.
Debt Financing: Debt financing refers to the process of raising capital for a business or individual by borrowing money, typically from lenders such as banks, financial institutions, or investors. It involves the use of debt instruments, such as loans or bonds, to fund operations, investments, or other financial needs.
Debt-to-equity ratio: The debt-to-equity ratio is a solvency ratio that measures the proportion of a company's debt to its shareholders' equity. It indicates how much debt a company is using to finance its assets relative to the value represented in shareholders’ equity.
Debt-to-Equity Ratio: The debt-to-equity ratio is a financial metric that measures a company's financial leverage by dividing its total liabilities by its total shareholders' equity. This ratio provides insight into a company's capital structure and its ability to meet its financial obligations.
Equity Capital: Equity capital refers to the funds invested in a business by its owners or shareholders. It represents the ownership interest in the company and is a crucial component of a firm's capital structure, providing long-term financing and serving as a buffer against financial risks.
Equity Financing: Equity financing refers to the process of raising capital for a business by selling ownership shares or stocks to investors. It represents a company's long-term funding source that does not require repayment, unlike debt financing.
Financial distress: Financial distress occurs when a firm struggles to meet its financial obligations, leading to potential insolvency or bankruptcy. It often results in increased borrowing costs and operational disruptions.
Financial Distress: Financial distress refers to a situation where a company or individual is struggling to meet their financial obligations and is at risk of defaulting on debt payments or even bankruptcy. It is a critical concept in the context of capital structure, the costs of debt and equity capital, capital structure choices, and optimal capital structure.
Financial leverage: Financial leverage is the use of borrowed funds to increase the potential return on investment. It involves amplifying both potential gains and potential losses by using debt financing.
Financial Leverage: Financial leverage refers to the use of debt or other financial instruments to increase the potential return on an investment. It involves using borrowed funds to finance a project or purchase, with the goal of magnifying the potential gains (or losses) compared to using only one's own capital.
Franco Modigliani: Franco Modigliani was an Italian-American economist who made significant contributions to the field of finance, particularly in the area of capital structure theory. His work on the concept of capital structure has become a fundamental principle in modern corporate finance.
Hurdle Rate: The hurdle rate is the minimum rate of return required for a company to undertake an investment project. It serves as a benchmark for evaluating the viability and profitability of potential investments, ensuring that the company's resources are allocated to projects that meet or exceed the desired level of financial performance.
Leverage: Leverage refers to the use of debt or other financial instruments to increase the potential return on an investment. It involves using borrowed funds or financial derivatives to magnify the impact of market movements, allowing investors to potentially generate higher returns but also exposing them to greater risk.
Market Value: Market value refers to the price at which an asset would trade in an open and competitive market. It represents the estimated worth of an asset based on its current demand and supply in the market. This concept is crucial in the context of time value of money and capital structure analysis.
Market value ratios: Market value ratios are financial metrics that evaluate the economic status of a company as perceived by investors. They help determine if a company's stock is overvalued, undervalued, or fairly priced in the market.
Merton Miller: Merton Miller was an American economist who made significant contributions to the field of finance, particularly in the area of capital structure theory. He is known for his work on the irrelevance of a firm's capital structure, which challenged the traditional view that a firm's value is affected by its debt-equity ratio.
Modigliani-Miller Theorem: The Modigliani-Miller theorem is a fundamental principle in corporate finance that states the value of a firm is independent of its capital structure, meaning the way a firm finances its operations through debt or equity has no effect on its overall value. This theorem is a crucial concept in understanding capital structure choices and the optimal capital structure for a firm.
Net present value (NPV): Net Present Value (NPV) measures the profitability of an investment by calculating the difference between the present value of cash inflows and outflows over a period. It is used to assess the attractiveness of a project or investment.
Net Present Value (NPV): Net Present Value (NPV) is a financial analysis technique used to determine the current value of future cash flows. It considers the time value of money, allowing for the comparison of investment options with different cash flow patterns and timings. NPV is a crucial metric in making informed decisions about capital budgeting and project selection.
Pecking Order: The pecking order refers to the hierarchical structure that emerges within a group, where individuals establish dominance over others through a system of ranked relationships. This concept is particularly relevant in the context of capital structure, as it explains how firms prioritize their financing decisions.
Preferred stock: Preferred stock is a type of equity security that gives shareholders preferential treatment regarding dividends and asset liquidation. It typically does not provide voting rights in corporate decisions.
Preferred Stock: Preferred stock is a type of equity security that provides shareholders with certain preferences over common stockholders. These preferences typically include priority in dividend payments and asset distribution in the event of liquidation.
Retained earnings: Retained earnings are the cumulative amount of net income that a company retains, rather than distributes as dividends to shareholders. They are reported on the balance sheet under shareholders' equity and reflect the company's reinvestment in its own operations.
Retained Earnings: Retained earnings are the portion of a company's net income that is retained or saved for future use, rather than being distributed to shareholders as dividends. This accumulated earnings account on the balance sheet represents the company's reinvested profits and is a key indicator of its financial health and growth potential.
Signaling Theory: Signaling theory is a concept in finance that explains how companies can convey information about their financial health and future prospects to investors through various signals, such as the choice of capital structure. It suggests that a firm's financing decisions can act as a signal to the market, providing insights into the company's underlying quality and future performance.
Target Capital Structure: The target capital structure refers to the optimal mix of debt and equity financing that a company aims to maintain in order to minimize its weighted average cost of capital and maximize firm value. It represents the company's long-term financing strategy and guides its financing decisions.
Tax Shield: The tax shield refers to the reduction in income taxes that a company can achieve by taking on debt. When a company borrows money, the interest payments on that debt can be deducted from its taxable income, effectively reducing the amount of taxes the company has to pay. This reduction in taxes is known as the tax shield.
Trade-off theory: Trade-off theory suggests that firms seek to balance the benefits of debt, such as tax shields, against the costs, including financial distress and bankruptcy risk. This results in an optimal capital structure where the marginal benefit of debt equals its marginal cost.
Trade-Off Theory: The trade-off theory is a financial concept that suggests companies should balance the benefits and costs of debt financing to determine their optimal capital structure. It proposes that there is an ideal mix of debt and equity that maximizes firm value by weighing the tax advantages of debt against the potential costs of financial distress and bankruptcy.
Weighted Average Cost of Capital: The weighted average cost of capital (WACC) is the average cost of a company's different capital sources, such as common stock, preferred stock, and debt. It represents the minimum rate of return a company must earn on its existing asset base to satisfy its creditors, owners, and other providers of capital.
Weighted average cost of capital (WACC): Weighted average cost of capital (WACC) is the average rate of return a company is expected to pay its security holders to finance its assets. It reflects the overall cost of raising new capital, considering both debt and equity.
Weighted Average Cost of Capital (WACC): The Weighted Average Cost of Capital (WACC) is a financial metric that represents the blended cost of a company's various sources of capital, including debt and equity. It is a crucial concept in corporate finance that is used to evaluate the overall cost of financing a project or investment, and to determine the minimum required rate of return for a company's operations.
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