Foreign Direct Investment and Private Sector Development in Sierra Leone: Examining the Moderating Roles of Financial Development and Institutional Quality
Using ARDL and robustness estimators on data from 1996–2023, this study finds that foreign direct investment significantly promotes private sector development in Sierra Leone, an effect that is further strengthened by improvements in institutional quality.
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
In the world of economics, nations often look to foreign investment as a lifeline, a way to bring in capital, technology, and jobs to jumpstart a struggling economy. This flow of money from abroad is known as foreign direct investment. The hope is that this external cash will not just sit in a bank account but will ripple through the local economy, helping local businesses grow and making it easier for ordinary people and companies to borrow money to build, farm, or trade. This borrowing capacity, often measured by how much credit banks lend to private businesses relative to the size of the country's total economic output, is a key sign of a healthy, developing private sector. However, money alone is rarely enough. Just as a seed needs the right soil to grow, foreign investment needs a supportive environment to take root. This environment is built on the quality of a country's institutions—the rules, laws, and governance systems that ensure contracts are honored, property is safe, and the government functions effectively. Without these foundations, foreign money might simply flow into isolated pockets, like a mine that operates in a bubble, without helping the rest of the nation.
Researchers Peter Makieu and his colleagues at Njala University in Sierra Leone set out to understand exactly how these pieces fit together in a country that has faced immense challenges. Sierra Leone, having emerged from a devastating civil war that ended in 2002 and later survived a severe Ebola epidemic, offers a unique story of recovery. The team wanted to know if foreign investment was actually helping to deepen the local credit market in Sierra Leone, and if so, whether the quality of the country's governance was the key that unlocked that potential. They gathered annual data spanning from 1996 to 2023, a period that covers the tail end of the conflict, the years of reconstruction, and the shock of the health crisis. By looking at the relationship between foreign investment, the amount of credit available to private businesses, and the strength of the country's institutions, they aimed to see if better governance could turn foreign cash into broader economic growth.
The study reveals a clear, long-term connection between foreign investment and the development of Sierra Leone's private sector, but with a crucial condition. The researchers found that as foreign investment increased, so did the amount of credit available to local businesses, but this positive effect was heavily dependent on the quality of the country's institutions. When the rules of the game were weak, foreign money did little to help local borrowers. However, as the country's governance improved—meaning better government effectiveness, higher regulatory quality, and stronger rule of law—the ability of foreign investment to boost local credit markets became much stronger. In fact, the data showed that improvements in governance acted as a powerful multiplier. The better the institutions became, the more effectively foreign investment translated into tangible growth for the private sector. This suggests that simply attracting more foreign money is not enough; the country must simultaneously work on fixing its legal and regulatory systems to ensure that money actually reaches and helps local businesses.
The analysis also uncovered how quickly the economy responds to changes. The researchers calculated that if the system falls out of balance, it corrects itself at a rate of about 34.6 percent per year. This means that while the path to a fully developed private sector is not instantaneous, the economy has a steady, self-correcting mechanism that pushes it back toward a healthy equilibrium. The study further confirmed that this relationship is not a fluke or a coincidence; it holds true even when the researchers tested the data using different statistical methods and removed the years of the Ebola epidemic to see if the results still stood. They even broke down the concept of "institutional quality" into its specific parts and found that the rule of law—specifically the enforcement of contracts and protection of property rights—was the most powerful driver in making foreign investment work for the local economy.
Despite these positive findings, the researchers are careful to note that the story is complex. In the short term, when foreign money first arrives, it does not immediately boost local credit; in fact, the data showed a slight initial dip, likely because new capital often goes first into large, extractive industries like mining before trickling down to smaller businesses. Furthermore, the study highlights that in the deepest periods of institutional weakness, such as during the conflict years, foreign investment alone could not generate growth. It was only as the country rebuilt its institutions that the foreign capital began to truly fuel the private sector. The researchers conclude that for Sierra Leone and similar nations recovering from conflict, investment promotion and institutional reform are not separate tasks but must be pursued together. Strengthening the rule of law and ensuring government effectiveness are not just moral imperatives but practical economic strategies that determine whether foreign investment will remain an isolated success or become a engine for national development.
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