At its core, corporate finance is about how businesses manage their money to grow and succeed. While a company has many goals, like creating great products or having happy employees, the primary financial goal is straightforward: to make the owners, or shareholders, as wealthy as possible. This is known as maximizing shareholder value.

This doesn't just mean chasing short-term profits. It’s about increasing the long-term value of the company's stock. A healthy, growing company with a strong future will have a higher stock price, making its shareholders' investment worth more over time. All the financial decisions a company makes are aimed at this single, overarching objective.

To achieve this goal, financial managers constantly make three fundamental types of decisions. These decisions are interconnected and shape the company's future.

1. The Investment Decision This is about deciding where to put the company's money. It involves evaluating potential projects or assets and choosing those that will generate the most value. Should the company build a new factory? Launch a new product line? Acquire a smaller competitor? This process, also known as capital budgeting, is crucial. A good investment decision will earn a return greater than its cost.

2. The Financing Decision Once a company decides on an investment, it needs the money to fund it. The financing decision is about how to raise that capital. The two main options are borrowing money (debt financing) or selling ownership stakes (equity financing). The mix of debt and equity a company uses is called its capital structure. The goal is to find the right balance that minimizes cost and risk.

3. The Dividend Decision When a company makes a profit, it has a choice. It can either return that money to its shareholders in the form of dividends or reinvest it back into the business to fund future growth. This is the dividend decision. Reinvesting profits can lead to a higher stock price in the future, while paying dividends provides an immediate return to shareholders. Management must decide which path creates more value.

A core principle underlying all these decisions is the time value of money. Simply put, a dollar today is worth more than a dollar tomorrow. Why? Two main reasons: opportunity cost and inflation.

If you have money now, you can invest it and earn a return. That's the opportunity cost of not having it. If you're promised $100 in a year, you miss out on the interest you could have earned during that time. Secondly, inflation erodes the purchasing power of money. The $100 you receive next year will likely buy less than $100 today.

This concept is critical for evaluating investments. Companies must compare the cost of a project today with the value of the cash it’s expected to generate in the future. To do this, they calculate the present value of those future earnings. For example, the value of $100 received a year from now, assuming a 5% interest rate, isn't $100. It's about $95.24 today. This allows for an apples-to-apples comparison of money across different points in time.

These foundational ideas—maximizing shareholder value, making smart investment and financing choices, and understanding that the timing of cash matters—are the building blocks of corporate finance.