(a) What is risk-return trade-off? Explain its significance in financial decision making. (10 marks) (b) Define optimum capital…

(a) Risk-return trade-off and its significance

The risk-return trade-off states that a higher expected return can be earned only by bearing more risk. Investors are risk averse, so they accept extra risk only for a higher risk premium, and a risk-free asset such as a government security earns the lowest return.

Significance in financial decisions:

• In investment choices, it links the required return to the risk of the asset: through the CAPM, the required return is the risk-free rate plus beta times the market premium.
• In capital budgeting, riskier projects must clear a higher, risk-adjusted discount rate.
• In portfolio selection (Markowitz), diversification gives the best return for a given risk along the efficient frontier.
• In financing, more debt raises the expected return to equity but also its risk, so the mix must balance both and maximise share value.

(b) Optimum capital structure and its determinants

The optimum capital structure is the debt-equity mix that gives the lowest weighted average cost of capital and so the highest value of the firm and of the share. Its determinants are:

• The tax shield, because interest is deductible and reduces the cost of debt.
• The cost of capital: debt is cheaper than equity up to a point beyond which the cost of both rises.
• The risk of financial distress and bankruptcy costs, which rise with debt, as the trade-off theory shows.
• Business risk and the stability of earnings and cash flow, which decide how much fixed interest the firm can carry.
• Financial flexibility and a debt-servicing capacity measured by interest cover and DSCR.
• Control, agency costs, the nature of assets (tangible assets support more debt), industry norms, market conditions and the pecking order of internal funds, then debt, then equity.

(c) Capital rationing and its principles

Capital rationing is the situation where a firm has a limit on the funds for investment and cannot take up all projects with a positive NPV. It is internal (soft) when management sets the budget, and external (hard) when the market or lenders limit the funds.

The principles are:

• Maximise the total NPV within the budget, not just spend it.
• For divisible projects, rank by profitability index (PV of inflows ÷ outlay) and fund in that order until the budget is exhausted.
• For indivisible projects, compare all feasible combinations, or use integer programming, to find the combination with the highest total NPV.
• Where the budget extends over several periods, use linear programming.
• Do not rank by IRR alone, since IRR can mislead for mutually exclusive projects.

(d) Five innovative debt instruments

• Zero-coupon or deep-discount bonds: issued at a large discount, with no interest, the return being the gain at redemption.
• Convertible debentures: they can be converted into equity shares on set terms, giving a lower coupon to the issuer and upside to the investor.
• Floating-rate bonds: the coupon is linked to a benchmark such as the T-bill or MIBOR yield, protecting against interest-rate swings.
• Masala bonds: rupee-denominated bonds sold overseas, so the investor, not the issuer, bears the exchange-rate risk.
• Green bonds: raised to fund environmentally sustainable projects, regulated by SEBI's debt-securities framework.

Others include inflation-indexed bonds, callable and puttable bonds and asset-backed securities.

(e) Importance of venture capital financing for start-ups

Venture capital financing is long-term, high-risk equity funding to young, innovative firms that cannot get bank loans because they lack collateral and track record. It matters to start-ups because it:

• supplies seed, early-stage and growth capital as risk capital without a debt-servicing burden;
• brings management advice, networks, hiring support and governance as well as money;
• helps develop technology, create jobs and scale new business models;
• rewards the investor through exits by an IPO, an acquisition or a buy-back, which encourages risk-taking.

In India, venture funds are registered with SEBI as Category I Alternative Investment Funds, and the Fund of Funds for Startups supports them under the Startup India programme.