Why Invest Your Money? Why Investing Is a Necessity, Not an Option
Updated: 5 hours ago
You should invest your money because cash loses purchasing power to inflation every year, while ownership of productive businesses has historically grown faster than the cost of living. Choosing not to invest is not a neutral decision. It is a slow, quiet decision to become poorer in real terms.
Many people see investing as optional, something for the wealthy or the financially trained. In reality, the cost of sitting on the sidelines is large, and it grows every year you wait.
Where this fits: this is the "why" behind the Start Here path. Once you are convinced, the Five Criteria shows you how to invest in individual stocks sensibly.
Why Invest Your Money at All?
There are three reasons, and each one is enough on its own:
Inflation. Money that sits still buys less every year.
Opportunity cost. Every dollar not invested is a dollar not compounding.
Freedom. A growing portfolio eventually gives you choices about how you spend your time.
Let us take each in turn.
The Hidden Thief: Inflation
Inflation is the gradual rise in the price of goods and services. A dollar today buys less than a dollar did ten years ago, and more than a dollar will buy ten years from now.
If your money sits in a savings account earning less than inflation, you are losing purchasing power, even while your balance goes up. The number on the screen rises. What it can buy falls.
Worked example: $10,000 in savings vs an index fund
Assume inflation runs at 3% a year. Compare three choices over ten years, using round, hypothetical rates:
Choice | Annual return | Balance after 10 years | What $10,000 of goods costs then |
Savings account | 1% | $11,046 | $13,439 |
Keep up with inflation | 3% | $13,439 | $13,439 |
Diversified stock index fund | 8% | $21,589 | $13,439 |
The saver ends up with more dollars but can afford less than when they started. The investor, if the market delivers something like its long-run average, can afford far more. Returns are never guaranteed and some decades are much worse than others. But over long periods, owning businesses has been one of the few reliable ways to stay ahead of rising prices.
Why do businesses beat inflation? Because the best of them can raise prices, grow volumes and adapt. When the cost of living goes up, their revenues tend to go up too. Cash cannot do that.
Why Saving Alone Is Not Enough
Saving is essential. You need an emergency fund of three to six months of expenses, held in cash. But savings are a foundation, not a plan.
Traditional savings accounts rarely pay much more than inflation after tax, and sometimes pay less. Over a working lifetime, relying on savings alone means working longer to maintain the same standard of living.
The fix is to separate the two jobs. Keep emergency money safe and accessible. Put long-term money, which you will not need for five years or more, to work in productive assets.
The Cost of Waiting
The biggest mistake is not a bad stock pick. It is waiting years to start.
Worked example: Sarah and Jake
Two hypothetical investors each earn an average 8% a year and invest $5,000 at the start of each year.
Sarah starts at 25 and invests for just 15 years, until 39. Then she stops adding money and lets it grow. She contributes $75,000 in total.
Jake waits until 35, then invests every year for 30 years, until 64. He contributes $150,000 in total.
At 65, Sarah has roughly $1 million. Jake has roughly $600,000. Sarah put in half as much money and ended up with far more, simply because her money had ten extra years to compound.
The same logic applies to a single lump sum. $10,000 invested at 8% for 30 years grows to about $100,000. The same $10,000 at 1% grows to about $13,500. Every year of delay leaves money on the table.
Compounding is explained in more depth in why a long time horizon is your biggest advantage. Use our investment calculators to run your own numbers.
Investing Gives You Financial Freedom
Think of investing like planting a tree. The earlier you plant it, the bigger it grows. A portfolio built steadily over a career can eventually produce income that covers much of your living costs.
As a hypothetical example, a $2 million portfolio withdrawing 4% a year would provide $80,000 of annual income. The exact safe withdrawal rate is debated and depends on markets, fees and how long you need the money to last, so treat that as illustration, not a promise. The point is that invested wealth can support you, while idle cash slowly runs down.
Freedom does not only mean retirement. It means being able to change careers, take time off, support family, or leave a legacy. Investing buys you options.
Three Common Misconceptions That Keep People Out
Beyond inflation and compounding, a few deeply held beliefs stop people from investing, or lead them to invest badly.
Misconception 1: Higher risk always means higher return
Taking more risk because it promises more reward is one of the fastest ways to lose money. The best investors see risk differently. They define it as the probability of a permanent loss of capital, not as how much a price moves up and down.
In their world, investing starts with avoiding losses. That does not mean hiding in government bonds. It means:
Buying shares of wonderful businesses
At prices well below what they are truly worth
So that even if the future disappoints, you are unlikely to lose money
This approach is easy to understand, anyone can apply it, and it protects you against inflation. It does demand the patience to sit through price swings and a long-term view. Our hub on investment risk explains why volatility is not the same as risk.
Misconception 2: The price you pay does not matter much for a great company
The price you pay decides both your risk and your return. Pay too much, even for a wonderful business, and you may never earn a decent return. Pay a bargain price consistently and it becomes hard to lose money, even if the future is less rosy than you hoped.
This is easier said than done. A practical discipline is to be slower than feels comfortable. When a business interests you but the price only looks fair, wait. When it falls and you feel an urge to buy, check it against your valuation rather than your feelings. When you do buy, consider building the position in stages rather than all at once. That way you are less likely to pay a price that looked attractive in the moment and foolish in hindsight. See the largest risk to your wallet: overpaying for stocks.
Misconception 3: Price and value are the same thing
The number flashing next to a ticker is the price you are being asked to pay today. The value of the business is something else: the cash it will produce over its life. Reasonable people estimate value differently, and only time proves who was right.
To estimate value, treat a share as part-ownership of a real business. Would you put a large part of your pay cheque into a private company without knowing whether it made money, whether its managers were capable, or whether it would still be thriving in ten years? Of course not. The same standard applies to a share. We explain this in what it means to own a stock.
You Do Not Have to Be an Expert to Start
Another myth is that investing is only for people who understand complex markets. You do not need to pick stocks or time the market to benefit. A low-cost, diversified index fund, bought regularly, gives you the market's return with almost no effort.
If you do want to go further and pick individual companies, that is a skill you can learn step by step. Having worked in investor relations, I have seen that the most successful long-term investors are rarely the ones with the most complicated models. They are the ones with a clear process and the patience to follow it.
How We Use This in the Five Criteria
The three misconceptions above are built directly into the Five Criteria:
Idea | Where it lives in the Five Criteria | House threshold |
Risk is permanent loss, so buy quality | Criteria 1 and 2: great business, durable moat | ROIC of 15%+ for 5+ years; a clear moat source |
Avoid businesses that can blow up | Criterion 4: sound balance sheet | Net debt/EBITDA of 2.0x or less; interest coverage of 5x+ |
Trust the people using your money | Criterion 3: aligned management | Share count flat or falling over 5 years |
Price decides risk and return | Criterion 5: reasonable price | FCF yield of 5%+ or 25%+ below conservative intrinsic value |
The framework puts quality first and price last, but it never skips price. That is how it protects you from both inflation and permanent loss.
Common Mistakes When Deciding Whether to Invest
Treating cash as safe for long-term money. It is safe from volatility, not from inflation.
Waiting until you "know enough". You learn by doing, with small amounts at first.
Investing money you need soon. Keep short-term money and your emergency fund in cash.
Chasing risk for returns. Speculation is not investing. Focus on avoiding permanent loss.
Ignoring price. A great company bought at any price is not automatically a great investment.
Frequently Asked Questions
Why is investing important? Because inflation erodes the value of cash, and investing in productive assets is one of the few reliable ways to grow your purchasing power over time and build financial independence.
Is it better to save or invest? Both, for different jobs. Save an emergency fund in cash first. Invest money you will not need for at least five years.
What if I invest and the market crashes? Crashes happen, and prices can fall sharply. If you own quality assets, did not overpay and do not need to sell, a crash is usually temporary. Selling in a panic is what turns a paper loss into a real one.
How much should I invest to start? Whatever you can afford consistently. Even $50 or $100 a month, invested regularly, builds the habit and benefits from compounding.
Your Next Step
Ready to start? Follow the beginner's guide to investing in stocks step by step. Then read why most beginners fail at investing so you can avoid the common traps from day one.
About the author: Cameron Hayes is a senior investor relations and finance professional who has worked in IR at Nasdaq Copenhagen-listed companies including Nilfisk and Maersk Drilling. He holds an MSc from Copenhagen Business School and a BCom from the University of Ottawa, and founded Gingernomics to teach individual investors the Five Criteria framework. More about Gingernomics.
The content on Gingernomics is for educational and informational purposes only and does not constitute financial advice. Always do your own research and consult a licensed financial advisor before making any investment decisions. Past performance is not indicative of future results.
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