Structural Oil Market Shocks, Geopolitical Risk, and Exchange Rate Dynamics in Latin American Emerging Economies
This paper analyzes five Latin American emerging economies and finds that while structural oil market shocks—particularly supply and oil-specific demand shocks—are key drivers of exchange-rate dynamics with some evidence of nonlinear asymmetry, geopolitical risk has only a limited impact once these oil shocks are accounted for.
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
The global economy is a vast, interconnected web where the price of a barrel of oil in one part of the world can ripple through to the value of money in another. For nations that rely heavily on selling or buying energy, the price of crude oil is not just a line item on a budget; it is a fundamental force that shapes their financial stability. When oil prices move, they do so for different reasons. Sometimes, the supply changes because a new well opens or a pipeline breaks. Other times, the demand shifts because the global economy is growing faster than expected, or because investors are worried about future shortages and buy oil just to be safe. These distinct causes, though they all result in a price change, act on the world's economies in different ways. Understanding which specific cause is driving the price is crucial for countries trying to manage their own currencies, yet for a long time, economists often treated all oil price changes as a single, undifferentiated event.
A recent study by Jungho Baek from the University of Alaska Fairbanks takes a closer look at this complexity, focusing on five Latin American economies: Brazil, Chile, Colombia, Mexico, and Peru. These nations were chosen because they offer a diverse mix of relationships with oil; some are major exporters like Colombia and Mexico, while others are net importers like Chile and Peru, and Brazil sits somewhere in between as both a large producer and consumer. The researcher wanted to know how the specific type of oil market shock—whether it comes from a change in supply, a shift in global demand, or a surge in precautionary buying—affects the value of these countries' currencies. The study also considered the role of geopolitical risk, the anxiety caused by wars and international conflicts, to see if these tensions move exchange rates independently of oil prices. By separating these different forces and looking at whether the currency reacts differently to rising versus falling shocks, the study provides a clearer picture of how these emerging markets navigate global energy turbulence.
To get at the heart of the matter, the researcher first had to untangle the oil price itself. Instead of looking at the price tag as a single number, the study used a sophisticated statistical method to break every price movement down into its three underlying components: a shock to the actual supply of oil, a shock to the overall demand of the global economy, and a shock driven by oil-specific demand, such as when traders buy extra oil because they fear a future shortage. Once these three distinct types of shocks were identified, the researcher examined how the real exchange rates of Brazil, Chile, Colombia, Mexico, and Peru responded to each one over a period spanning from 1994 to 2025. The analysis also checked whether the currency reacted differently when a shock was positive compared to when it was negative, a concept known as asymmetry, and whether the fear of global conflict added any extra weight to these movements.
The findings reveal that the source of an oil price change matters immensely. The study found that the most significant impacts on exchange rates came from changes in oil supply and from oil-specific demand shocks, while changes in general global economic demand played a much smaller, more limited role. For instance, in Colombia and Mexico, which export oil, a surge in precautionary demand for oil—often driving prices up—led to a stronger currency, as the country earned more from its exports. In contrast, for Peru, a net importer of oil, the same type of shock weakened the currency because the country had to pay more for its energy imports. Surprisingly, the study found that geopolitical risk, the anxiety surrounding wars and conflicts, had very little direct effect on these exchange rates once the specific oil market shocks were taken into account. This suggests that for these Latin American economies, the fundamental mechanics of the oil market are a far more powerful driver of currency value than the general fear of global instability.
The research also explored whether the direction of the shock changed the outcome, asking if a currency would rise faster when oil prices went up than it would fall when they went down. The results showed that while some asymmetry exists, it is not a universal rule. In a few specific cases, such as in Chile and Mexico, the exchange rate did respond differently depending on whether the oil shock was positive or negative, but for most countries and most types of shocks, the reaction was relatively balanced. The study concludes that policymakers in these nations should not treat all oil price fluctuations as the same thing. Instead, they need to distinguish between a supply disruption, a global economic boom, and a fear-driven demand spike, as each sends a different signal to the currency market. By understanding these nuances, leaders can better anticipate how their economies will react to the inevitable shifts in the global energy landscape, rather than reacting to the price tag alone.
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