## Introduction to Capital Budgeting

Capital Budgeting (also called the Investment Decision) is the process of optimally allocating funds to long-term projects to maximise shareholders' wealth.

### What Capital Budgeting Involves

Step	Activity
1	Identification of investment projects
2	Estimating and evaluating post-tax incremental cash flows
3	Selecting proposals that maximise investor returns

### Why Capital Budgeting Decisions Are Critical

1. Substantial Investment

Long-term projects demand large capital outlays. The size and timing of cash flows determine the source of finance. Errors here are expensive.

2. Long Time Period

These decisions shape the rate and direction of a firm's growth over many years, affecting both future benefits and costs.

3. Irreversibility

Once implemented, reversal is economically or practically impossible due to:

Upfront capital payment
Contractual obligations
Technological lock-in

4. Complex Decisions

Future events are uncertain; quantifying all costs and benefits is inherently difficult.

> Key takeaway: Because capital budgeting decisions are large, long-lasting, hard to reverse, and complex to evaluate, they require rigorous analysis before commitment.

Worked example

### Example 1

A textile company wants to replace manual looms with automated weaving machines costing ₹5 crore. This is a capital budgeting decision because: (a) it involves a substantial investment, (b) benefits will accrue over the machine's 10-year life, (c) once installed, reverting to manual looms is impractical, and (d) future output volumes and prices must be estimated to justify the outlay.

### Example 2

A software startup is choosing between two cloud infrastructure upgrades—one costing ₹50 lakh and another costing ₹1.2 crore. Evaluating which maximises post-tax incremental cash flows relative to cost is a classic capital budgeting problem, highlighting complexity (future demand uncertain) and irreversibility (contracts with cloud provider).

⚠️ Common exam mistakes

Confusing capital budgeting with working capital management—capital budgeting is exclusively about long-term asset decisions, not day-to-day liquidity.
Thinking any large expenditure is a capital budgeting decision; the key criterion is that it affects the firm over multiple future periods.
Ignoring the post-tax nature of cash flows—gross cash flows overstate returns and lead to wrong decisions.
Underestimating irreversibility: students often assume a bad investment can simply be 'sold off', overlooking contractual obligations and market illiquidity.

Reference:

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Introduction and Purpose of Capital Budgeting

Worked example

⚠️ Common exam mistakes