COST OF CAPITAL & CAPITAL STRUCTURE – A STUDY OF SELECTED INDIAN COMPANIES

Abstract

The relationship between capital structure and cost of capital is a fundamental aspect of corporate finance. It involves understanding how the mix of debt and equity financing affects a company’s overall cost of capital, which in turn influences its valuation and financial strategy. This study investigates the relationship between capital structure and cost of capital for selected companies listed on the NIFTY 50 index over the period 2010-2024. The analysis focuses on various determinants of capital structure and their impact on the overall cost of capital, substantiated through prominent capital structure theories such as the Trade-Off Theory, Pecking Order Theory, and Agency Theory. The study examines the determinants of capital structure by identifying key variables influencing the capital structure of NIFTY companies. The secondary data from financial statements of NIFTY 50 companies, spanning 2010-2024 has been investigated and dependent variables like debt-equity ratio and independent variables: tangibility, taxability, liquidity, profitability and WACC were analysed. The regression analysis to explore the impact of independent variables on the capital structure and cost of capital is implemented. Literature indicates that debt financing offers tax benefits since interest payments are tax-deductible. This deduction reduces the company’s taxable income and, consequently, its tax liability, effectively lowering the cost of debt. However, excessive reliance on debt increases financial risk, particularly during economic downturns or periods of cash flow issues. As a result, lenders may demand higher interest rates to compensate for the increased risk, thus raising the cost of debt. Generally, the cost of debt is lower than the cost of equity due to the tax shield. Yet, as debt levels rise, the marginal cost of additional debt increases because of the heightened risk of financial distress. In contrast, equity financing does not provide tax benefits, making it more expensive than debt. Investors require a higher return on equity to compensate for the greater risk compared to debt. However, equity financing offers greater financial flexibility and reduces the risk of financial distress. Companies with higher equity levels are better positioned to withstand economic downturns and have more flexibility in their financial strategies. One potential drawback of issuing new equity is the dilution of existing shareholders’ ownership, which may concern current shareholders and management. The study found that moderate levels of debt can reduce the overall cost of capital due to tax benefits. However, high levels of debt increase financial risk and the cost of capital. Companies with higher equity levels tend to have a higher cost of capital due to the higher required return on equity. However, these companies also benefit from greater financial stability and flexibility. The optimal capital structure for NIFTY companies appears to be a balanced mix of debt and equity, where the cost of capital is minimized, and financial flexibility is maintained. The relationship between capital structure and cost of capital is complex and influenced by various factors, including tax benefits, financial risk, and investor expectations. The findings from the study of NIFTY companies suggest that a balanced approach to capital structure, leveraging both debt and equity, can help minimize the overall cost of capital while maintaining financial stability. The study concludes that the capital structure of NIFTY companies is influenced by multiple factors, including tangibility, taxability, liquidity, profitability and WACC. These determinants play a crucial role in shaping the cost of capital. The findings align with prominent capital structure theories, providing a comprehensive understanding of the dynamics between capital structure and cost of capital for Indian companies. This study provides valuable insights into how companies can optimize their capital structure to minimize the cost of capital. Corporate Managers can use the findings to make strategic decisions about financing, balancing debt and equity to minimize the cost of capital and enhance shareholder value. It is important for strategic financial planning, helping companies make informed decisions about financing options. The companies by understanding the optimal mix of debt and equity, can achieve financial stability, reducing the risk of financial distress and contributing to overall economic stability. Policymakers can use the findings to develop regulations that encourage optimal capital structures, promoting sustainable economic growth fostering a stable and efficient financial market. The insights help investors and financial analysts assess the financial health and risk profile of companies, leading to more informed investment decisions and portfolio management. The research provides a foundation for further studies on capital structure, encouraging exploration of new variables and models in different economic environments.