Do inflation, growth, and exchange rate converge? Some North African evidence
This paper analyzes macroeconomic convergence in six North African countries from 1980 to 2024 and finds that while inflation and exchange rates exhibit weak stochastic convergence, economic growth remains non-convergent, resulting in a distinct two-group club pattern and highlighting the need for complementary policies to foster regional integration.
Original paper licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). This is an AI-generated explanation of the paper below. It is not written or endorsed by the authors. For technical accuracy, refer to the original paper. Read full disclaimer
Imagine a group of six friends trying to run a race together. In the world of economics, this "race" is about how fast their countries grow, how much prices rise (inflation), and how much their money is worth compared to others (exchange rates). For a long time, economists wondered if these friends would eventually run at the same speed and stay in a tight pack, or if they would drift apart forever. This is called "convergence." Think of it like a group of hikers: if they all start at different spots but follow the same map and weather, they might end up walking side-by-side. But if one hiker has a broken leg, another is carrying a heavy backpack, and the third is lost in the woods, they will never walk in step. This paper dives into the North African region to see if these six countries are finally running in sync or if they are still sprinting in different directions.
The study, led by Hassan Tawakol Ahmed Fadol, acts like a high-tech referee for this economic race. It looks at data from 1980 to 2024 for Algeria, Egypt, Morocco, Mauritania, Libya, and Tunisia. The researchers didn't just look at the finish line; they used advanced statistical tools to check if the runners were actually getting closer to each other over time, or if their paths were just crossing by accident. They also checked how the runners influenced each other—does a fast runner make the others faster, or does a stumble in one country drag the whole group down?
Here is the twist: The paper suggests that these countries are not running a single, unified race. In fact, the study explicitly finds that there is no evidence of global deterministic convergence, meaning the group as a whole is not moving toward a single, uniform destination. Instead, they have split into two different groups. One group, which the author calls the "core," includes Morocco, Tunisia, Algeria, and Libya. These four seem to be converging, meaning their inflation and exchange rates are slowly moving toward a similar pattern, like a tight-knit team finding a rhythm. However, the other two runners, Egypt and Mauritania, are in a "periphery" group. They are diverging, or drifting away from the pack, showing different patterns that don't match the core group.
The study explicitly rules out the idea that all six countries are converging globally into one smooth, uniform group. While the data shows that inflation and exchange rates are weakly converging stochastically (meaning they show some tendency to move together when accounting for how the countries influence each other), economic growth is mostly non-convergent. This means the countries are growing at different speeds and facing different structural challenges, preventing them from becoming a single, unified economic block.
The researchers also found a fascinating "dance" between the variables. They discovered that inflation and exchange rates are tightly linked, often pushing and pulling each other in a feedback loop. If prices go up, the currency value tends to shift, and vice versa. However, this dance has a cost: high inflation tends to hurt economic growth. It's like a runner who starts sprinting so fast they trip and slow down the whole team. The paper suggests that while some countries are learning to run together, the region as a whole is still a mix of synchronized teams and solo runners.
In short, the paper suggests that North African economic integration is "partial" and "heterogeneous." It's not a story of everyone becoming the same; it's a story of specific clusters finding their own pace. For policymakers, this means that trying to force all six countries into a single monetary union right now might be like trying to make a marathon runner, a sprinter, and a jogger run the exact same race at the exact same speed—it just doesn't work without fixing the underlying differences first. The path forward, the author suggests, involves tailored strategies for the diverging countries and deeper cooperation for the converging ones, rather than a one-size-fits-all solution.
Drowning in papers in your field?
Get daily digests of the most novel papers matching your research keywords — with technical summaries, in your language.