Structural Transformation and Income Convergence toward Upper Middle-Income Status: Evidence from Zimbabwe Case

Economic development is often described as a race where nations strive to climb from poverty to prosperity. For decades, economists have observed a hopeful pattern: poorer countries tend to grow faster than richer ones, eventually catching up to a shared standard of living. This idea, known as income convergence, suggests that with the right conditions, a nation can close the gap between its current wealth and a higher, more stable status. However, the path is rarely a straight line. Some countries stall in the middle, unable to break through to the next level of wealth, while others surge ahead. The key to this journey often lies in structural transformation—the process of shifting an economy away from simple, raw material extraction toward more complex industries, better education, and stable financial systems. Understanding why some nations succeed while others struggle is vital for policymakers aiming to lift millions out of poverty and secure a future of sustained growth.

In this context, a recent study by Strike Mbulawa of the University of Botswana turns its attention to Zimbabwe, a nation with a complex economic history and a bold goal: to reach upper-middle-income status by the year 2030. The country has faced severe economic turbulence, including a period of hyperinflation that disrupted daily life and business until 2009, followed by a period of stabilization that has yet to fully resolve deep-seated structural issues. Mbulawa's research asks a critical question: is Zimbabwe actually on the right track to meet its 2030 target, or are its current economic habits working against it? To find the answer, the author did not look at Zimbabwe in isolation. Instead, he built a comparative model using data from sixteen countries over a forty-five-year period, from 1980 to 2024. This group included nations that successfully made the jump to upper-middle-income status, African neighbors with similar economic structures, and countries that have remained stuck in lower-income brackets. By analyzing how these different groups moved—or failed to move—toward their income goals, the study isolates the specific factors that either speed up or slow down the journey.

The investigation reveals a clear and somewhat surprising set of drivers that determine a country's progress. The study finds that relying heavily on natural resources, such as mining or oil, actually widens the gap between a country's current wealth and its target. While these resources bring in money in the short term, they tend to crowd out other industries and weaken the institutions needed for long-term growth. Similarly, simply exporting more manufactured goods does not automatically lead to prosperity. If a country increases its exports of factory goods without also upgrading the technology and skills behind them, the income gap can actually grow. This suggests that quantity is not enough; the quality and sophistication of what is being produced matter far more. The research indicates that without a shift toward higher-value activities, an increase in manufacturing exports can signal a structural weakness rather than a strength.

On the other hand, the study highlights powerful forces that do help a nation close the gap. Improvements in public health, measured by life expectancy, are strongly linked to faster convergence. A healthier population is more productive and better able to contribute to economic growth. Education also plays a critical role; as more people complete secondary school, the economy gains the skilled workforce necessary to adopt new technologies and move into more complex sectors. Furthermore, the research points to the importance of physical capital, such as building factories, roads, and energy infrastructure. When a country invests in these tangible assets, it creates the foundation for immediate growth. The data also shows that the economic reforms introduced in Zimbabwe after 2009 helped stabilize the environment and improved the chances of reaching the 2030 goal, though the study notes that these changes alone are not enough to guarantee success without deeper structural shifts.

To understand what the future might hold, the author ran simulations to project Zimbabwe's path from 2025 to 2030 under different scenarios. In a baseline scenario, which assumes the country continues with its current mix of policies and trends, the gap between Zimbabwe's income and the upper-middle-income threshold is projected to shrink gradually, moving from a distance of 0.216 in 2025 to 0.021 by 2030. This suggests that the country is indeed moving in the right direction, but the pace is slow. An optimistic scenario, which assumes significant improvements in health, stronger export growth, and better structural upgrades, shows a similar narrowing of the gap, ending at 0.028. Even a pessimistic scenario, where key drivers stagnate, still shows a reduction in the gap, though the path is less certain. These projections indicate that while the goal is within reach, it requires consistent effort. The study suggests that the country's ability to reach its target depends on managing its natural resources wisely so they fund diversification rather than dependency, upgrading its exports to include more value-added products, and continuing to invest heavily in the health and education of its people.

Ultimately, the research offers a sobering but actionable roadmap. It confirms that Zimbabwe has the potential to reach its 2030 target, but the path is not guaranteed by growth alone. The country must move beyond simply extracting resources or producing basic goods and instead focus on building a more sophisticated, resilient economy. The findings suggest that without targeted policies to manage resource wealth, upgrade industrial capabilities, and deepen human capital, the country risks remaining stuck in the middle. The study concludes that reaching the next level of income status requires more than temporary fixes; it demands a sustained transformation of how the economy works, ensuring that the benefits of growth are broad-based and that the structural foundations are strong enough to support a prosperous future.