How the common ways of making money actually work

Stock trading, blogging, dropshipping, agencies, real estate, YouTube. Not whether they work — who is on the other side, where the money physically comes from, and what the evidence says about how many people profit.

Most writing about these asks whether they still work, and answers confidently. This asks two different questions:

Where does the money physically come from, and who is on the other side of you?

Every one of these methods moves money from somewhere to you. Something has to be on the other end — a counterparty, an advertiser, a lender, a tenant. When people lose money at these, it is rarely because they were lazy. It is usually because they never established who was paying them and why, and it turned out the answer was nobody, or themselves.

I have tried to keep verdicts out of this. Where there is evidence I have used it; where there is none, I say so, because the absence is often the most useful fact available.

The mechanism underneath is in how money actually flows, but you do not need it here.

Before the methods: the machine nobody explains

Start with something that should be more startling than it is.

You can decide, right now, to sell 100 shares of a large company. Seconds later they are sold, at a price you could see in advance. You did not find a buyer. You did not negotiate. You did not wait.

Who bought them?

Almost certainly a market maker — a firm whose business is quoting both a price it will buy at and a price it will sell at, continuously, on thousands of securities. It did not want your shares. It has no view on the company. It quoted a buy price slightly below its sell price, and it earns that difference, the spread, over enormous volume.

This is worth sitting with, because it reframes what “the market” is. Your ability to exit a position instantly is not a property of the universe. It is a service, provided by a firm, in exchange for a fee you pay without seeing it. The fee is the spread.

Several things follow.

Liquidity is manufactured, and it is conditional. Market makers quote both sides because they can hedge and because volume is predictable. When conditions get violent, spreads widen and quotes thin out — precisely when you most want to sell. The guarantee was never a guarantee.

Someone is always on the other side, and it is usually a professional. Every trade has two parties. When you buy because you have concluded the price will rise, someone sold to you. Increasingly that someone is an institution or an algorithm with better information, faster execution and lower costs. This does not mean you cannot profit. It means you should be able to say what your edge is over the party on the other side.

“Free” trading is not free. Many brokers charge no commission and are paid instead by routing your orders to firms that execute them — payment for order flow. You are not the customer in that arrangement. The spread is where the cost lives.

Liquidity is why stock ownership is accessible at all. It is also why trading feels frictionless in a way that obscures who you are trading against.

Active stock trading

Where the money comes from. From other traders. This is close to a zero-sum activity before costs and negative-sum after them: gains come from other participants’ losses, minus spreads, fees and taxes taken by intermediaries. This is unlike owning a share of a business, where returns come from the business producing something.

That distinction — trading versus owning — is the single most important one on this page, and the words are used interchangeably almost everywhere.

What the evidence says. This is the one method with genuinely good data, because regulators and academics have studied it repeatedly.

• Chague, De-Losso and Giovannetti studied every individual who day-traded Brazilian equity futures between 2013 and 2015. Of those who persisted for more than 300 days, about 3% were profitable, and roughly 1% earned more than a bank teller’s salary.
• Barber, Lee, Liu and Odean, studying the entire Taiwanese market over several years, found less than 1% of day traders were reliably profitable.
• Barber and Odean’s earlier work on US retail brokerage accounts found that the households that traded most underperformed the market by the widest margin, with trading costs the main cause.

Different countries, different decades, different instruments, consistent finding. That is about as strong as evidence gets in this field.

Why it works for some. The professionals who do profit consistently are generally not predicting prices. They are providing liquidity, arbitraging small structural inefficiencies, or exploiting speed — activities requiring infrastructure, not insight. That is a different job from the one retail trading platforms advertise.

Blogging and written content

Where the money comes from. Almost always advertising or affiliate commission, which means it ultimately comes from consumer spending. An advertiser pays to reach readers because some fraction of them buy something. You are paid a share of the expected value of your readers’ future purchases.

Understanding this explains most of what otherwise seems arbitrary: why finance and insurance pay far more per reader than poetry, why traffic without commercial intent earns almost nothing, and why an audience that trusts you is worth more than one that merely visits.

What the evidence says. Weak, and worth saying so. There is no registry of blogs and earnings. Reported figures come overwhelmingly from people who succeeded and are now selling advice about succeeding, which is the definition of a biased sample.

What can be said with confidence is that the distribution is extremely skewed — a small number of properties earn most of the revenue in any niche — and that this is characteristic of attention markets generally.

How the flow changed. Two things moved at once. Text became free to produce in unlimited quantity, and search engines began answering questions directly rather than sending readers onward. The first collapses the price of the commodity; the second removes the distribution that made it reachable.

Neither affects a reader who came for a particular writer. That is the part a machine cannot supply, and it is a different asset from traffic.

Dropshipping

Where the money comes from. The customer pays retail. The supplier is paid wholesale. The difference is gross margin, and out of it comes advertising, payment processing, returns and refunds.

The critical number is what advertising costs to acquire one customer, because in a competitive ad auction that cost rises until it approaches the margin available. That is what auctions do. It is not a temporary market condition.

What the evidence says. Effectively none, and this is itself informative. There is no dataset of dropshippers and their outcomes. The most visible sources of numbers are course sellers, whose income frequently comes from the courses rather than the stores.

When the people best positioned to publish outcome data are the people selling entry, treat the absence as a finding.

How the flow works. Money moves customer → you → supplier, with ad platforms taking a share on the way in. Notice what does not accumulate: no brand, no audience, no repeat purchase in most cases. Stop paying for ads and the flow stops the same day.

Compare that to a business where the customer returns unprompted. The difference is not effort. It is whether anything is being built.

The agency

Where the money comes from. A client’s budget, which comes from their revenue. This is the most straightforward flow on the page: someone has a problem expensive enough to pay to solve, and you solve it.

You scale by employing others and keeping a margin on their work. So the channel is the wage channel, enlarged — you have escaped the cap on your own hours, not the dependence on labour.

What the evidence says. Reasonable, because agencies are registered businesses that file accounts. Survival rates resemble small businesses generally: most do not last a decade, and the failures cluster around cash flow and client concentration rather than lack of demand.

Why it works for some. Agencies that endure tend to have proprietary relationships and specific expertise rather than general capability. What is genuinely owned is reputation and client relationships, which is why an agency can be sold and a freelancer’s practice usually cannot.

Real estate

Where the money comes from. Two distinct sources people routinely conflate.

Rent comes from a tenant’s income. It is a claim on somebody’s wages, which is worth stating plainly because it determines the ceiling — rents cannot detach from local incomes for long.

Capital appreciation comes from what the next buyer can borrow. That is the load-bearing sentence. House prices are set primarily by available credit, because almost nobody buys with cash. Interest rates, loan-to-value limits and lending appetite move prices more than the building changes.

This is why property connects so directly to where money comes from: mortgage lending is money creation, and property is the asset most of it is created against.

What the evidence says. Good, because transactions are registered and published. Long-run returns are well documented, as is their dependence on entry price, leverage and timing. The dispersion is wide — national averages conceal enormous local variation.

Why it works for some. Leverage. Putting 20% down and holding an appreciating asset multiplies the return on the money you put in — and multiplies losses identically in reverse. Most property fortunes and most property ruins have the same cause.

YouTube and creator platforms

Where the money comes from. Advertisers, mostly, with the platform retaining a share (YouTube’s published split returns 55% of ad revenue to the creator). So, as with blogging, it traces back to consumer spending — advertisers pay to reach an audience that might buy.

Sponsorship, memberships and product sales change the counterparty but not the shape: someone is paying for access to attention you have assembled.

What the evidence says. Poor, and skewed. The platform does not publish per-creator earnings. What is well established is that the audience distribution follows a severe power law — a small fraction of channels hold most of the viewership — and that revenue follows viewership.

Be careful with reported earnings for the same reason as blogging: successful creators talk about it, unsuccessful ones do not, and many of the loudest numbers come from people whose income is teaching the method.

The structural point. The audience is genuinely valuable and genuinely yours in one sense — those people chose you. But access to them is not yours. It is granted by a platform that sets the terms, changes the algorithm without notice, and owes you nothing. That is not a criticism of the platform; it is the arrangement.

Which is why creators who last build a direct line — email, usually — that survives a change in the terms.

Each of these, in detail

One post per method, following the same questions:

• Can you actually make a living day trading? — the one with real data
• Does blogging still make money?
• Is dropshipping still worth starting?
• How agencies actually make money
• How people actually make money in property
• How much do creators actually make?

The questions worth asking of anything

Not conclusions, just the questions this exercise produces.

Who is paying me, and why is it worth it to them? If you cannot name the payer and their reason, you have not found the mechanism. Advertisers pay for purchase intent. Clients pay for solved problems. Tenants pay for shelter. Other traders pay because they were wrong.

Is this positive-sum or zero-sum? Producing something people want is positive-sum. Trading against other traders is close to zero-sum before costs. Both can pay; they demand different things of you and carry different odds.

Does anything accumulate when I stop? Some activities build an asset while you work — an audience, a reputation, an owned property. Others produce income while you run and nothing when you stop. Neither is wrong. Confusing them is.

What does the evidence actually say, and who produced it? For day trading, several independent studies agree. For dropshipping and creator income, the loudest numbers come from people selling the method. That asymmetry is not an accident, and noticing it is most of the skill.

Sources

• Chague, De-Losso and Giovannetti, Day trading for a living? (2020), on Brazilian equity futures day traders.
• Barber, Lee, Liu and Odean, Just how much do individual investors lose by trading? (Review of Financial Studies), on the Taiwanese market.
• Barber and Odean, Trading is hazardous to your wealth (Journal of Finance, 2000).
• YouTube’s published Partner Program revenue share, for the 55% figure.
• Land registry and national statistical agencies publish transaction-level property data in most countries. Prefer those to any commentary, including this.

Where I have said the evidence is poor, that is a claim you should be able to check by looking for it and failing to find it.