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By Uche Usim
Gross Domestic Product (GDP) rebasing is a fundamental economic exercise that updates the reference year used to measure a country’s economic output. It ensures that economic assessments reflect structural changes, emerging industries and shifts in production and consumption patterns.
In simple words, basing GDP against a benchmark of prices from a particular year over a duration of years to determine the GDP for current periods is known as rebasing.
Experts note that for Nigeria, where economic transformation is unfolding in various sectors, the latest rebasing, carried out by the National Bureau of Statistics (NBS) recently, is more than a statistical adjustment.
They said it is a recalibration of national priorities, a redefinition of sectoral contributions and a crucial tool for shaping future economic policies.
The base year for Nigeria’s GDP calculations is being updated from 2010, which has been in use for the past 15 years, to 2019.
The last rebasing exercise in 2014 resulted in a dramatic shift, pushing Nigeria’s GDP from $270 billion to over $510 billion.
The transformation made Nigeria the largest economy in Africa at the time, a status that not only enhanced its global standing but also revealed the deep structural evolution of its economy. The exercise showed the growing prominence of sectors such as telecommunications, Nollywood and financial services, while diluting the dominance of oil and agriculture. With another rebasing done, analysts posit that new realities will emerge, capturing the rise of fintech, digital payments, e-commerce and renewable energy.
The latest exercise also provided a more accurate measure of Nigeria’s economic strength, but beyond the numbers, it will have far-reaching implications for fiscal management, investment attraction and the trajectory of national development.
According to Dr Baba Yusuf, Head of National Accounts at NBS during the panel session at the workshop, the base year is meant to change periodically.
Also at the event, Dr. Moses Waniko stated clearly that the 2008 Systems of National Accounts recommends rebasing national accounts every five years and that NBS committed to adhering to this timeline moving forward.
On reasons NBS chose 2019 as the base year, Dr Waniko said it was a relatively stable year.
The economy’s conditions during this year provided a more representative baseline for rebasing. More so, 2020–2022 were excluded due to economic disruptions from the pandemic and instability, following guidance from the International Monetary Fund (IMF).
Implications for Nigeria
One of the most immediate effects of rebasing is the expansion of Nigeria’s GDP size, which is expected to elevate its ranking among emerging economies.
A larger economy enhances investor confidence, improves credit ratings and strengthens Nigeria’s access to international financial markets.
It presents an opportunity to redefine Nigeria’s position as a regional economic powerhouse, signaling to the world that the country is not just growing but evolving.
However, this increase does not mean that there is more money in circulation or that the purchasing power of Nigerians has improved. Rather, it is a statistical reflection of current economic realities, particularly the surge in the prices of goods and services over time.
One major implication is the potential decline in the tax-to-GDP ratio if government revenues do not grow in tandem with the newly rebased GDP. This would underscore the challenge of low revenue generation relative to the total value of goods and services produced in the economy. A shrinking tax-to-GDP ratio signals inefficiencies in revenue mobilization, limiting the government’s ability to fund critical infrastructure, social programs, and public services.
Similarly, the debt-to-GDP ratio will experience a significant decline as the GDP value rises. On the surface, this suggests that Nigeria’s debt stock appears smaller in comparison to the size of the economy, giving the impression that the country has more room to borrow. However, a misinterpretation of this metric could mislead policymakers into accumulating further debt without addressing underlying fiscal challenges.
A lower debt-to-GDP ratio may also create the illusion that Nigeria has a strong capacity to repay its debts without relying on further borrowing. Yet, this does not necessarily reflect the country’s true fiscal health, especially when government expenditures consistently surpass revenues. Without a corresponding increase in revenue collection and prudent fiscal management, the rebased GDP alone does little to improve Nigeria’s financial position.
Implications for citizens
For the average Nigerian, a higher GDP value resulting from the rebasing exercise may seem like a sign of economic progress. In theory, an increased GDP per capita, a measure of national income per person, could suggest an improved standard of living.
However, GDP per capita is an imperfect measure of individual economic well-being. It does not account for income distribution or the rising cost of living, both of which directly affect citizens’ financial stability. A growing GDP does not automatically translate to better wages, more job opportunities, or improved access to basic necessities such as food, healthcare, and education.
Without policies that address inflation, unemployment and income inequality, the benefits of a higher GDP value will remain largely theoretical. For ordinary Nigerians, economic growth must be accompanied by tangible improvements in living conditions, purchasing power, and social welfare to have meaningful impact.
Analysts emphasise that economic expansion must be accompanied by policies that address poverty, unemployment, and income inequality. Without a concerted effort to make growth inclusive, the benefits of rebasing may remain concentrated within a small segment of the population.
Another significant outcome of rebasing is the shift in sectoral contributions. The previous exercise demonstrated the rising importance of Nollywood and telecommunications and in the latest rebasing, new sectors will undoubtedly gain prominence. Nigeria’s fintech industry, driven by companies like Flutterwave and Paystack, has attracted global investment and expanded financial inclusion.
Digital commerce and online retail platforms have reshaped the consumer market, while the creative industry, spanning music, fashion, and digital content creation, has gained international recognition. Renewable energy is also making inroads, as solar solutions and green projects gain traction in Nigeria’s energy transition. Rebasing will offer policymakers fresh insights into these transformations, guiding decisions on investment, taxation, and economic diversification.
Expanding the tax net, enhancing transparency in public finance and boosting non-oil revenue sources will be crucial in ensuring that the economy is not just growing on paper but is truly sustainable.
Beyond macroeconomic indicators, GDP rebasing is a powerful tool for refining economic planning and policymaking. With updated sectoral contributions, the government can identify high-growth industries and allocate resources more effectively. If the rebasing exercise reveals a decline in manufacturing’s contribution to GDP, it may prompt targeted interventions to revive industrial production, promote local manufacturing, and enhance export competitiveness. Similarly, if digital businesses emerge as key growth drivers, policymakers may introduce tax incentives, funding opportunities, and regulatory frameworks to foster innovation and entrepreneurship. Accurate economic data strengthens fiscal policy alignment, ensuring that government spending is guided by real sectoral performance rather than outdated economic assumptions.
The rebasing also plays a crucial role in shaping Nigeria’s investment landscape. Foreign investors rely on clear economic data to assess market potential and a larger, more diversified economy will enhance Nigeria’s appeal.
By accurately capturing the contributions of fintech, digital services, and agribusiness, rebasing could attract capital inflows from global investors looking for high-growth opportunities. It could also improve Nigeria’s case in trade negotiations, development partnerships, and credit ratings. However, investment attraction is not just about numbers; it requires a stable regulatory environment, efficient infrastructure, and policy consistency. Nigeria must ensure that the business climate remains conducive to both local and international investors, translating GDP growth into tangible economic benefits.
Employment and income distribution will also come into sharper focus. As digital and tech-based industries gain prominence, questions will arise about job creation. Many of these sectors generate wealth but are not as labor-intensive as agriculture or traditional manufacturing. While a rebased GDP may highlight economic expansion, it is essential that growth translates into widespread employment opportunities. Education and vocational training systems must align with industry demands, equipping the workforce with relevant skills for the evolving job market. The government must also support small and medium-sized enterprises (SMEs), which are crucial for employment generation and economic resilience. Without inclusive policies, Nigeria risks having a high GDP but persistent unemployment and income disparities.
Social and welfare considerations must also be integrated into the economic conversation. A rebased GDP might show an economy that is larger than previously thought, but it does not erase the challenges of inflation, poor infrastructure, and inadequate public services. Nigeria must ensure that economic growth is accompanied by investments in healthcare, education, and social safety nets. Rising inflation and living costs remain pressing concerns for citizens, and while rebasing might improve macroeconomic indicators, it must be complemented by policies that directly improve quality of life.
Human development indicators should rise alongside GDP, reflecting true national progress rather than statistical improvements alone.
Macroeconomic stability will also come under scrutiny. A rebased GDP might justify increased government spending, but authorities must strike a balance to prevent inflationary pressures. If new fiscal projections emerge from the exercise, they must be carefully integrated into budget planning to avoid excessive borrowing or unrealistic expenditure commitments.
Exchange rate policies may also need adjustments if rebasing significantly impacts foreign exchange-related calculations. Central bank policies, interest rates, and monetary interventions will all play a role in ensuring that the rebased GDP reflects stable and sustainable economic growth.
Rebasing Nigeria’s GDP is more than a statistical update; it is a moment of economic recalibration that presents both opportunities and challenges. While it may position Nigeria as a larger and more diversified economy, real success will depend on how well the government translates this data into meaningful reforms. Beyond the headlines of a growing GDP, what matters most is whether the economy is creating jobs, lifting people out of poverty, and driving sustainable development.
To maximise the benefits of rebasing, Nigeria, economic watchers note, must implement sound economic policies, strengthen revenue generation, and foster an investment-friendly climate.
A rebased GDP, they insist, should not just reflect numbers, it should signal a country that is truly on the path to shared prosperity.
