Wealth changes nations twice. The first time is when they earn it. The second is when they begin to believe it will never disappear. Nigeria mastered the first. It struggled with the second.

The 1970s should have become Nigeria’s greatest economic turning point. Instead, they became the beginning of one of its greatest economic paradoxes.

Few countries in modern history have experienced the kind of financial windfall Nigeria enjoyed during the global oil boom. Crude oil prices surged. Government revenues expanded at an unprecedented pace. Nigeria suddenly found itself with the financial capacity to build the infrastructure, institutions and industries capable of sustaining prosperity for generations.

Half a century later, that same country has become one of Africa’s largest borrowers. What happened?

The easy answer is debt. The truthful answer is far more uncomfortable. Nigeria did not borrow its way into debt. It governed its way there.

The oil boom did not merely change Nigeria’s balance sheet. It changed the way the country thought about money. Oil wealth created the illusion that government revenue would always be abundant. Instead of treating extraordinary earnings as temporary capital to build a diversified economy, successive administrations increasingly treated them as permanent income available for immediate spending.

That single mistake changed the country’s economic trajectory. Governments became richer. The economy did not become equally stronger.

As public revenues grew, so did government expenditure. Large projects were announced. The public sector expanded. Imports became easier than domestic production. Consumption grew faster than productivity. Economic diversification became less urgent because oil appeared capable of paying every bill. But prosperity built on one commodity carries an invisible danger. It encourages complacency.

And complacency creates opportunities for something even more destructive. Corruption. The oil boom coincided with the emergence of a political culture in which access to public office increasingly became access to extraordinary public wealth. Instead of converting oil revenues into productive national assets, too much of that wealth disappeared into inflated contracts, abandoned projects, patronage networks and outright looting by a handful of politicians who see an opportunity to secure not just their future alone but that of their unborn generations.

The true cost of corruption is often misunderstood. It is not merely the money stolen. It is a development that never happened. Every power station never completed became years of expensive self-generation by businesses. Every refinery that failed to deliver increased dependence on imported fuel.

Every abandoned railway increased logistics costs for manufacturers. Every poorly equipped school reduced the productivity of future workers. Every hospital left unfinished weakened the country’s human capital.

Every dollar diverted from productive investment quietly became tomorrow’s borrowing requirement. That is why corruption should not be viewed simply as a moral failure. It is an economic crime against future generations.

Yet corruption alone does not explain Nigeria’s debt story. Weak institutions allowed poor fiscal discipline to persist. Governments routinely spent as though oil prices would remain permanently high.

Long-term savings remained inadequate relative to decades of petroleum earnings. Economic reforms were often interrupted by political transitions. Capital projects were launched without consistent completion. Public investment frequently produced less economic value than expected.

The result was an economy increasingly dependent on government spending but insufficiently productive to sustain it. Then reality arrived. Oil prices became volatile.

Foreign exchange earnings weakened. The population continued to grow. Infrastructure deficits accumulated. Development needs expanded. Government obligations remained.

Borrowing gradually became the bridge between national expectations and declining fiscal capacity. Today’s debt is therefore not simply the consequence of recent borrowing decisions.

It is the accumulated bill for decades of opportunities that were never fully converted into lasting national wealth. Countries borrow for many reasons. Some borrow to finance future prosperity. Others borrow because past prosperity was never properly invested.

Nigeria’s experience increasingly reflects the second. The lesson is not that natural resources are dangerous. Nor is it that borrowing is inherently bad. Modern economies borrow.

The difference is that successful nations use periods of abundance to reduce future dependence on debt. They build productive infrastructure, strengthen institutions, invest in human capital and create diversified economies capable of generating income long after commodity booms end.

Nigeria largely consumed what should have been compounded. That is why today’s debt debate should not begin with the latest loan agreement. It should begin in the 1970s.

Because that was the decade when Nigeria possessed the financial freedom to shape a different future and failed to do so.

The bottom line

History rarely punishes nations for being poor. It punishes them for wasting periods of extraordinary abundance. Nigeria’s debt challenge is not simply the result of borrowing.

It is the cumulative consequence of decades in which temporary oil wealth was too often treated as permanent prosperity, governance too often yielded to greed, and national opportunities were sacrificed for short-term political gain.

The next chapter of Nigeria’s economic story will not be written by how much the country borrows. It will be written by it, whether it finally learns the lesson the oil boom never taught: Revenue can make a nation rich. Only discipline can make it wealthy.

Bio line:

Emmanuel C. Macaulay is a development thinker and writer focused on institutional design, democratic systems, and the structural conditions that determine whether power remains accountable or becomes self-reinforcing.