The Poorest Nigerians Pay the Highest Prices, and Inflation Is Not the Reason

On the same day this week, petrol sold at Nigerian filling stations for between ₦1,370 and ₦1,450 a litre.

That is a spread of ₦80 on an identical product, refined in the same places, moved on the same roads, sold under the same deregulated rules. Fill a 50-litre tank at the wrong station and you have paid ₦4,000 more than someone who filled the same tank a few kilometres away. Neither driver had any way of knowing.

Now apply that to everything else you buy. Rice, cement, drugs, school books, a mechanic's labour, a bag of sachet water, an okada ride. In each case there is a price, and in almost no case is that price published anywhere you can check before you arrive.

I want to argue that this — not inflation, not the exchange rate, not the cost of fuel — is the most overlooked cost-of-living problem in Nigeria. And unlike the others, it does not require a central bank, a minister or a trillion naira to fix.

The poverty premium

Researchers in other countries have a name for what happens next: the poverty premium. It describes the well-documented pattern in which poorer households systematically pay more for the same goods and services than better-off households do.

The mechanisms are all present in Nigeria, and most people will recognise every one of them.

Buying small costs more per unit. A sachet of detergent costs many times more per gram than a large box. Someone who can afford the box pays less for the same thing. Someone who can only find ₦200 today pays the premium — every single day, for years.

Buying near costs more than buying far. A household without transport buys from the closest kiosk, which charges more than the market twenty minutes away. The cost of getting to the cheaper price is itself a barrier.

Buying without information costs the most of all. This is the big one. In a haggling market, the price you get is a function of what the seller believes you know. A trader who thinks you have no idea what cement should cost will quote accordingly. Being uninformed is, quite literally, priced.

Notice that none of these has anything to do with inflation. Even in a year of perfectly stable prices, these premiums would persist. They are not about the price level. They are about who can see it.

Why Nigeria is unusually bad at this

Most countries solved this gradually and almost by accident. Supermarket chains posted shelf prices. Newspapers ran classified listings. Then the internet arrived and price comparison became a habit.

Nigeria's retail economy is overwhelmingly informal, which means most transactions happen without a posted price at all. That is not a moral failing of traders; it is how a market operates when margins are thin, costs change weekly, and customers vary enormously in what they can pay. Flexible pricing is a survival strategy for a small trader.

But the aggregate effect is an economy where nobody — not consumers, not regulators, not the traders themselves — has a reliable picture of what anything costs. The National Bureau of Statistics collects prices for the inflation basket, publishes monthly, and the data arrives weeks after the fact and is aggregated to a level that tells you nothing about your own market.

So we have national price statistics and no local price information. We can tell you inflation was 15.39% in August. We cannot tell you what a bag of rice costs in Mile 12 today.

What this costs, concretely

Three costs, in rising order of importance.

Households overpay. Every uninformed purchase carries a spread. Over a year, for a family spending most of its income on food and transport, this is not a small number.

Markets fail to punish bad actors. The theoretical defence against overcharging is competition: charge too much and customers go elsewhere. That mechanism requires customers to know that "elsewhere" is cheaper. Without visible prices, an expensive seller faces no consequence, and an honest seller gets no reward for being honest. The discipline that is supposed to make markets work simply does not arrive.

Policy gets made blind. When fuel is deregulated, the official expectation is that competition will restrain pump prices. When electricity bands are introduced, the expectation is that customers will know what they are paying for. Both assume an informed consumer. Nigeria keeps designing market reforms for a consumer who does not exist, then expressing surprise when the reforms deliver the volatility without the competition.

The fix is cheaper than people think

Here is what I find genuinely hopeful. Solving this does not need new legislation or a big budget. It needs data, collected often, published openly, at a level people can actually use.

Mandatory posted prices where it is enforceable. Filling stations already display prices on boards. Pharmacies, supermarkets and licensed retailers can be required to as well. This is a rule that costs the state almost nothing and is verifiable by any passer-by.

Crowdsourced local price data. The fastest route to a real price picture in an informal economy is the people already shopping in it. Thousands of Nigerians checking prices daily can build a more current and more granular map of what things cost than any official survey, because they are already in the market. The data exists; nobody is collecting it.

Publication at a useful grain. National monthly averages are for economists. A shopper needs what this item costs in this market this week. That is a different product entirely, and it is the one nobody has built.

Teach the habit of checking. The reason price comparison feels alien in Nigeria is not that people do not care about money. It is that there has never been anything to compare against. Give people a number and the behaviour follows quickly, because the incentive is immediate and personal.

What you can do this week

Ask the price before you signal that you need the thing. Price discovery collapses the moment the seller knows you are committed.

Check two sellers before any purchase above a threshold you set. Pick a number — ₦10,000, ₦20,000, whatever fits your life — and make it a rule. The time cost is small; the spreads are not.

Write down what you pay for your ten most frequent purchases. This is the single most useful financial habit available to a Nigerian household, and it costs nothing. Within two months you will know your own inflation rate, and you will spot an overcharge instantly instead of absorbing it.

Share prices. When you find that an item costs ₦3,000 less at a particular market, the information is worth more shared than hoarded. Every person who knows the real price makes it harder to charge an unreal one.

The bottom line

Nigeria spends a great deal of public argument on the price level — subsidies, tariffs, exchange rates, interest rates. All of it matters.

But a household can do nothing about the exchange rate. It can do a great deal about paying ₦4,000 more for a tank of fuel than it needed to, if only someone tells it what the fuel costs.

Knowing the price before you pay is not a small convenience. In an economy this opaque, it is one of the few forms of financial power an ordinary person actually holds — and the reason it feels out of reach is that nobody has bothered to put the numbers where people can see them.