Welcome to the World of Capital Structure!

Hello! If you’ve ever wondered how a company decides between taking out a massive bank loan or asking the public for more money by selling shares, you’re in the right place. In this chapter, we explore Changes in Capital Structure. This is essentially about how a company shifts its "funding mix" to fuel growth or improve value.

Don't worry if this seems a bit heavy on the numbers at first. Think of capital structure like a cocktail recipe: changing the proportions of the ingredients (Debt and Equity) changes the final result (the value of the firm). Our goal is to find the "perfect mix" that keeps shareholders happy and the company stable.

1. Why Change the Capital Structure?

Before we look at how a company changes its structure, we need to know why they bother. Usually, it's for one of these reasons:
1. To fund a new project: If the company needs \$10 million for a new factory, they have to get it from somewhere.
2. To lower the cost of capital: Debt is usually cheaper than equity. By swapping expensive equity for cheaper debt, the company might lower its overall WACC (Weighted Average Cost of Capital).
3. To manage risk: If a company has too much debt, it might become "geared" too high and risk bankruptcy. They might issue shares to pay off debt and "de-gear."

2. Methods of Raising Equity Capital

When a company wants to change its structure by increasing equity, they have a few main paths. Here are the most common ones you need to know for the F3 exam:

A. Rights Issues

A Rights Issue is when a company offers existing shareholders the chance to buy new shares, usually at a discount to the current market price. This is done in proportion to their current holdings (e.g., a "1 for 4" rights issue).
Analogy: Imagine you own 10% of a pizza. The chef wants to make the pizza bigger. He asks you first if you want to buy 10% of the new extra slices so you still own 10% of the whole thing.

Key Concept: Theoretical Ex-Rights Price (TERP)
The TERP is the expected market price of a share after the rights issue has taken place. You calculate it using this logic:
\( \text{TERP} = \frac{(\text{Number of old shares} \times \text{Old price}) + (\text{Number of new shares} \times \text{Issue price})}{\text{Total number of shares after issue}} \)

Quick Review: Shareholders have three choices in a rights issue:
1. Take up the rights: Buy the new shares.
2. Sell the rights: Sell the "right" to buy the discounted shares to someone else.
3. Do nothing: Let the rights expire (this is usually a bad idea as it leads to dilution of wealth).

B. Public Offers and Placings

Public Offer: Selling shares to the general public. This is expensive due to advertising and legal fees.
Placing: Selling shares directly to a small group of institutional investors (like pension funds). This is faster and cheaper than a public offer.

Key Takeaway: Rights issues are the most "fair" to existing owners because they prevent their ownership from being watered down (diluted) without their consent.

3. Methods of Raising Debt Capital

If a company wants to increase its "gearing" (the proportion of debt), it can use several instruments:

1. Bank Loans: Simple, but often come with covenants (rules the bank sets, like "you must keep your cash levels above X").
2. Bonds (Debentures): The company issues "IOUs" to the market. They pay a fixed interest rate (coupon) and repay the principal later.
3. Convertible Debt: This starts as debt (paying interest) but gives the holder the option to turn it into shares later. This is often cheaper for the company because the "option" to get shares is valuable to the lender.

4. Capital Structure Theories

This is where F3 gets interesting! How does changing the mix of debt and equity affect the Value of the Firm? There are three main ways to look at this.

Theory 1: Modigliani & Miller (M&M) - No Tax

M&M argued that in a perfect world with no taxes, it doesn't matter how you fund a company. The value of the company depends on its operating assets, not how you slice the "financial pie."
The Pizza Analogy: Cutting a pizza into 4 slices or 8 slices doesn't change the size of the pizza. Similarly, splitting earnings between shareholders and lenders doesn't change the total value.

Theory 2: Modigliani & Miller (M&M) - With Tax

In the real world, interest on debt is tax-deductible. This creates a Tax Shield. Because the government is essentially paying part of your interest, debt becomes very attractive. M&M revised their theory to say: Companies should be funded with 100% debt to maximize value.

Theory 3: The Trade-off Theory

Wait! If 100% debt is best, why don't companies do it? Because of Financial Distress Costs. As you take on more debt, the risk of going bust increases. Eventually, the cost of potential bankruptcy outweighs the benefit of the tax shield.
Key Takeaway: The "Optimal" capital structure is the point where the benefit of the tax shield is exactly balanced by the cost of financial distress.

Theory 4: Pecking Order Theory

This theory suggests managers don't look for an "optimal mix." Instead, they follow a path of least resistance based on Asymmetric Information (the fact that managers know more about the company than investors).
The Pecking Order Memory Aid (PIE):
1. P - Retained Earnings (Internal funds - easiest and cheapest).
2. I - Straight Debt (External debt - lenders are easier to convince than shareholders).
3. E - External Equity (Issuing new shares - the last resort because it signals to the market that the shares might be overvalued).

5. Practical Considerations & Common Pitfalls

When you are answering exam questions about changing capital structure, watch out for these traps:

The Dilution Trap: Issuing more shares doesn't always make shareholders poorer. If the new money is invested in a project with a positive NPV, the "pie" gets bigger, and the shareholders' wealth could actually increase!
Control Issues: Issuing new shares to outsiders can lead to a loss of control for the original owners. This is why many small companies prefer debt or rights issues.
Issuance Costs: Don't forget that issuing debt or equity isn't free. There are lawyers, bankers, and accountants to pay. These "transaction costs" can make some changes unfeasible.

Summary Quick Review

Rights Issue: Discounted shares for existing owners. Use TERP to find the new price.
WACC: The average cost of all funds. Changes in capital structure aim to minimize this.
Tax Shield: The main reason debt is "cheaper" than equity (Interest x Tax Rate).
Pecking Order: Use your own cash first, then debt, then new shares as a last resort.

Don't worry if the theories feel a bit abstract! Just remember: Managers are always trying to find the cheapest way to get money without scaring off investors or risking the company's survival. You've got this!