Part 1: Boring Economics
I dropped economics in secondary school and chose further mathematics instead. At the time, economics felt abstract. It bored me to death. I have since had to take courses on economics at post-graduate level. And I think it is one of the most practical subjects to understand.
A few days ago I overheard a conversation in a supermarket. Someone was complaining about the price of petrol. The price had gone up again, and the explanation came quickly.
“Dangote is at it again.”
Their reasoning was simple. What does a war in Iran have to do with petrol refined in Lekki? The conclusion was that the usual suspects were simply taking advantage of the masses.
You hear this kind of argument everywhere.
It is not confined to the beer parlour or the street corner. You hear it in supermarkets, in taxis, in WhatsApp groups, and sometimes even in places that are supposed to be centres of learning and policy.
We argue constantly about the economy, yet we rarely understand the mechanisms that shape it. And that misunderstanding is not harmless. When people cannot see the system that produces economic outcomes, they begin to look for villains instead. Price increases become conspiracies. Currency movements become manipulation.
The difficulty with these explanations is that prices rarely exist in isolation. Even when fuel is refined locally, the forces that shape its price remain global. Crude oil prices are set in international markets. If they had to import crude oil, shipping costs move with global logistics conditions.
This is not unique to Nigeria. The economist Bryan Caplan argues in The Myth of the Rational Voter that economic misunderstanding is widespread even in wealthy democracies; voters routinely misunderstand trade, markets, and price mechanisms.
Advanced economies possess a stabilising layer. Independent central banks, credible statistical agencies, professional civil services, and policy institutions anchor economic decisions in reality. Even when public opinion drifts, technocratic institutions can pull policy back toward economic constraints.
In many developing countries that corrective layer is weaker than it should be. Politicians are as economic-illiterate as the people they lead, and they keep interfering with technocrats who might otherwise stabilize policy. Daron Acemoglu and James Robinson make a related point in Why Nations Fail. When elites misunderstand how economic institutions function, development suffers.
Economic development depends not only on resources or geography. It depends on whether a society develops a shared understanding of how its economy actually works.
This is where Nigeria struggles most visibly. Public debates frequently swing between contradictory instincts, higher government spending with lower taxes, more jobs alongside policies that make business increasingly difficult. Individually these preferences are understandable. Together they violate the constraints of the economic system.
Nigeria’s economy is complex. But complexity is not the same as mystery. The economy is not chaos. It can be understood as a set of interacting systems that govern the flow of production, money, labour, and capital.
Once you see the structure, economic events stop feeling random. They begin to look like symptoms, traceable back to causes.
Part 2: Two Engines
Nigeria’s economy runs on two engines at the same time. The domestic engine is what happens inside the country: production, employment, credit conditions, government spending, and the decisions of the Central Bank of Nigeria.
The global engine is what happens in the wider world: oil markets, international capital flows, and the interest rate decisions of the Federal Reserve.
Most Nigerians focus on the domestic engine when thinking about the economy. That instinct is understandable. But the global engine is equally powerful, and it operates whether or not anyone is paying attention.
A decision made in Washington can influence the cost of borrowing in Lagos. A shock in global markets can reduce the capital available to Nigerian businesses.
Both engines feed into the six systems that actually drive the economy.
Part 3: Six Systems
System 1: The Production System
The production system is the real economy, where goods are grown, made, and delivered, and where services are provided.
The broadest measure of this system is GDP, the total value of goods and services produced in the economy over a given period. When GDP grows, the economy expands. When it contracts for two consecutive quarters, economists call it a recession.
But GDP is an average, and averages are deceptive. The economy can be growing on paper while most people feel poorer. If growth is concentrated in one sector while agriculture and manufacturing stagnate, the headline number flatters the reality on the ground.
This is why economists also track sectoral growth rates; how fast each part of the economy is expanding or contracting relative to the whole.
Agriculture employs the largest share of Nigerians and determines food supply. When farming is disrupted by insecurity, infrastructure failures, famine or shortages of inputs, food inflation often begins there, in the farms.
Manufacturing converts raw materials into finished goods. But Nigeria’s manufacturing base has long been constrained by unreliable electricity, high logistics costs, and dependence on imported inputs that become more expensive whenever the naira weakens.
Services: telecommunications, banking & finance, retail, transportation, healthcare, and education, account for the largest share of GDP. But service activity depends heavily on household purchasing power.
Beneath all of this sits the informal economy, which employs the majority of Nigerians. Street traders, artisans, transport operators, and small-scale service providers form the real labour market. Most are there because formal opportunity is scarce.
System 2: The Employment System
Employment is the bridge between economic activity and everyday life. Production creates output, but employment converts that output into income and distributes it across households.
Nigeria’s labour challenge is not only unemployment but underemployment. Many people work, but not in jobs that fully use their skills or generate stable income. A university graduate selling phone accessories is technically employed. The economy has not absorbed their full potential.
Real wages, adjusted for inflation, determine whether workers are actually gaining or losing ground. If wages rise ten percent but inflation rises twenty percent, purchasing power falls even when the payslip shows more money.
Employment is the human summary of everything happening elsewhere in the economy.
System 3: The Money and Credit System
Money and credit form the circulatory system of the economy. Without them, production cannot be financed, businesses cannot expand, and economic activity stalls.
When credit flows freely, the economy moves. When credit tightens, everything slows.
The Central Bank of Nigeria sets the Monetary Policy Rate, the benchmark from which commercial lending rates are derived. When inflation rises, the central bank typically raises interest rates to slow demand and stabilise prices.
But higher rates also make borrowing more expensive for businesses and households. It means that investments are deferred and hiring slows. The tool that fights inflation also restrains growth.
In Nigeria inflation is often driven by supply-side forces such as currency depreciation, fuel costs, or agricultural disruption rather than excessive borrowing. When rates rise in response to supply-driven inflation, businesses feel the pressure even though credit was never the original problem.
System 4: The Fiscal System
The fiscal system is the government’s financial architecture, how public money is raised, allocated, and managed.
In Nigeria it is dominated by oil.
When oil prices are high and production is stable, government revenue rises and public spending expands. When prices fall or production is disrupted, revenue contracts sharply across all levels of government.
Federal allocations get shrunk. State governments struggle to pay salaries. Nigeria’s spending has historically been dominated by recurrent costs such as salaries and debt service rather than capital investment. So when revenues decline, infrastructure spending is cut first.
Public debt adds another pressure. When Nigeria borrows in foreign currency and the naira weakens, the local currency cost of repayment rises automatically. Debt service already consumes a large share of government revenue. Currency depreciation makes that share even larger.
System 5: The External Account
The external account describes Nigeria’s economic relationship with the rest of the world, particularly the flow of foreign currency into and out of the country.
Nigeria requires foreign currency to import many of the goods its economy depends on: fuel, machinery, pharmaceutical inputs, food commodities, and industrial materials. Most of those dollars come from crude oil exports.
When oil revenues are strong, dollar supply is adequate, foreign reserves accumulate, and the central bank has the capacity to stabilise the naira.
When dollar inflows weaken, reserves fall and the naira comes under pressure. The exchange declines. A weaker naira raises the cost of imported inputs across the economy. Those costs move through supply chains and eventually appear in the prices people pay.
Remittances from Nigerians abroad provide a second important source of dollars. Unlike oil revenues, remittances tend to remain relatively stable and often increase during difficult periods.
The opposite movement also occurs through capital flight, when businesses and households move savings into dollars or foreign accounts during periods of uncertainty. Individually this behaviour is rational. Collectively, it reduces the dollars available in the economy and intensifies pressure on the naira.
System 6: The Global Capital System
This system operates largely outside Nigeria but shapes its economic conditions continuously.
Global investors move capital across countries in search of returns. Two signals strongly influence those movements.
The first is interest rates set by the United States Federal Reserve. When American interest rates rise, investors can earn higher returns on safe US assets. Capital that had previously flowed into emerging markets begins to move back toward the United States.
Countries like Nigeria experience this as reduced investment inflows, higher borrowing costs, and additional pressure on their currencies.
The second signal is global financial uncertainty, often measured by indicators such as the CBOE Volatility Index. When uncertainty rises, investors tend to move their capital into safer assets and withdraw funds from riskier markets.
Economists increasingly describe this dynamic as the global financial cycle. Capital expands and contracts in waves, often driven by financial conditions in major economies.
Part 4: How the Systems Connect
These systems do not operate independently. They form a chain.
When global financial conditions tighten, foreign investment slows. Dollar inflows weaken. Reserves come under pressure and the currency depreciates.
A weaker currency raises import costs and inflation rises. The central bank raises interest rates to stabilise prices. Borrowing becomes more expensive. Businesses slow investment and hiring.
Household incomes stagnate. Consumption weakens. Demand in the production system falls. If oil revenues are also declining at the same time, government finances weaken just as the shock arrives.
What appears to the public as disconnected economic events is often a transmission mechanism moving through the system.
Nigeria has experienced this sequence repeatedly across economic cycles. The actors change. The mechanism does not.
Seeing the structure changes how you read economic news. Most economic headlines are signals about one of these systems. Once you know which system is moving, and why, the noise begins to resolve into something legible.
The economy is not a conspiracy. It is a system. And systems, once understood, become readable.
Production creates value. Employment distributes income. Capital finances activity. Fiscal policy allocates public resources. The external account stabilises trade. Global capital determines investment flows.