The Weak US Dollar, the Fiscal Trap, and Latin America’s Next Decade

John Price
Managing Director
AMI

Washington has a debt problem, and it is compounding faster than the economy meant to carry it. Net interest hit a record 3.2% of GDP in 2025 — briefly larger than the entire defense budget — and the CBO expects it to swallow 25.8% of federal revenue by 2036. Two things are happening at once as a result: foreign investors are demanding a bigger premium to hold long Treasuries, pushing yields up even while the Fed sits on its hands, and those same investors are hedging their dollar exposure more aggressively. That second habit is one reason the dollar index just posted its worst first half since 1973.

That combination does not land on Latin America as one bloc. It runs through three different engines: the commodity exporters (Brazil, Chile, Peru, Colombia, Argentina, Ecuador, Venezuela), the nearshoring-driven manufacturers (Mexico, Central America), and the services and tourism exporters (the Caribbean, Panama, Costa Rica). A weak dollar is a terms-of-trade tailwind, transmitted through export prices. High rates are a balance-sheet shock, transmitted through debt. Some countries catch the tailwind and dodge the shock. Others catch both. A few catch neither.

The Setup: A Weaker Dollar, a Costlier Government

The mechanics are simple; the politics are not. Washington is financing rising deficits, entitlement obligations and a foreign-capital-dependent external deficit faster than domestic savings can support it. Something has to give. Investors must be paid more to hold a growing pile of US obligations, or those obligations must get cheaper in foreign-currency terms — higher rates, a weaker dollar, or both. Reserve-currency status buys Washington time. It does not buy an exemption.

Start with what the dollar has already done, not what it might do next. The Federal Reserve’s broad dollar index averaged 122.7 in 2025, versus 88.8 in 2011 — up roughly 38%. That is the real starting point for any weak-dollar thesis: elevated valuations leave plenty of room to fall, and the CBO’s own baseline already assumes gradual dollar weakening over the coming decade.

The dollar index fell roughly 10% in 2025 — its steepest drop in three decades — and has since stabilized rather than reversed course. Goldman’s January 2026 outlook, tellingly titled “Different Dollar Downside,” expects the erosion in foreign demand for US assets to continue.

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The fiscal arithmetic explains why investors might want more. CBO projects the deficit rising from 5.8% of GDP in 2026 to 6.7% by 2036 — nearly double the 50-year average — with public debt climbing from 101% to 120% of GDP and net interest roughly doubling to $2.1 trillion. On a revenue basis, net interest already ate up 18.5% of federal revenue in 2025 and is projected to reach 25.8% by 2036. The question was never whether Washington keeps issuing debt. It will. The question is at what rate, and at what exchange rate, investors keep absorbing it.

If yields do not rise enough on their own, the dollar becomes the release valve. The US current-account deficit ran at $226.8 billion in the first quarter of 2026 (2.9% of GDP), against a net international investment position of roughly -$21.3 trillion — the largest external liability position in history. Foreign investors judge their returns in their own currency, so depreciation risk pushes Washington toward higher yields, a cheaper dollar, or both. Reserve-currency status moderates that pressure; it does not eliminate it. The dollar still made up 57.13% of reported global FX reserves in the first quarter of 2026, but that share is shrinking and diversifying. Global central-bank gold holdings, an estimated $5.2 trillion by end-2025, now exceed foreign-official Treasury holdings — a milestone that would have been unthinkable a decade ago.

Three Latin Americas

It’s tempting to treat “Latin America” as a single trade with a single payoff: weak dollar good, high rates bad. The region does not work that way. What a country exports, and in what currency it borrows, decides how these forces land. A soft dollar is free money for a copper exporter and a margin squeeze for a dollar-earning, colón-costed tour operator. A high US rate is background noise for a country already running its own high real rate by choice — and existential for one that is fully dollarized.

I. The Commodity Exporters: Brazil, Chile, Argentina, Peru, Ecuador, Venezuela, Colombia

This is the group with the cleanest theoretical tailwind. Commodities are priced in dollars, so a softer greenback lifts the dollar price of oil, copper, soy, gold and iron ore — and lifts local-currency export value further still. It is also the group with the widest dispersion in outcomes, because US rates bite through balance-sheet quality, and on that measure Chile and Venezuela are not living in the same universe.

II. The Labor-Intensive Manufacturing Exporters: Mexico and Central America

This group inverts the commodity logic entirely. These economies sell finished goods into the US market, priced against Asian competitors, and take home a large share of national income as remittances. A weak dollar is not automatically good news here: it can mean a stronger local currency that erodes competitiveness and shrinks the dollar value of money sent home. High rates matter less for market access, since compressed emerging-market spreads have absorbed most of the move, and more for the handful of large dollar-denominated borrowers exposed directly to Washington’s rate path.

III. The Services and Tourism Exporters: The Caribbean, Panama, Costa Rica

This is the group where a weak dollar hits the revenue line, not the cost line. These economies sell an experience — a beach, a canal transit, a surgery, a call center — largely to US consumers or US capital, priced in dollars. A weaker dollar doesn’t reprice the product; it just shrinks the buyer’s purchasing power. Several of these economies are also formally dollarized or pegged, which strips away any currency buffer and leaves the interest-rate channel to do all the talking.

Ranking the 15 largest Latin American economies exposure to US economic risk

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What the Ranking Leaves Out

No analysis of Latin America’s future can ignore the US economy’s pull on the region, and that pull is what this article set out to measure. But the fate of these countries won’t be decided by macroeconomic legacy and US exposure alone. There are encouraging political shifts under way that could inject real fiscal discipline into Argentina, Venezuela, Colombia and Brazil, softening the risks each faces from rising US rates and a weaker dollar. And an AI-driven, digitized world, contested by Washington and Beijing alike, will need more of Latin America’s natural resources, which should lift the region’s terms of trade regardless of what the dollar does.

Changing a nation’s economic trajectory, though, takes time and no small amount of luck. For most strategic investors, the ranking above should be taken seriously: it reflects not just relative exposure to US economic risk but the legacy of economic stewardship that has run these markets for decades — and habits like that take a generation to actually change.

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Planning for three Decades:
AMI’s Approach

None of this resolves within a single budget cycle. The CBO’s baseline runs to 2036, the dollar’s correction follows roughly fifteen years of appreciation, and the political reforms that could rehabilitate Argentina, Venezuela, Colombia or Brazil’s fiscal standing take years, not quarters, to show up. A company weighing a manufacturing footprint in Mexico, a mining concession in Peru, or a distribution network in Colombia is not betting on 2026 — it is underwriting where US fiscal policy, the dollar and a country’s own politics will sit five, eight or ten years out, a horizon most corporate planning was never built to consider.

That is the planning gap AMI’s strategic planning practice exists to close. Rather than hand clients a single data deliverable, AMI pairs independent market and country-risk research with senior advisory judgment — the same blend behind this analysis — and builds consensus across a company’s country managers, product leaders and functional heads, who rarely see the region’s trajectory the same way. A focused workshop puts those views on the table, tests them against the data, and turns debate into a short list of initiatives leadership has actually agreed to defend, and fund.

That discipline matters most when the picture itself is moving. Colombia’s debt load, Mexico’s peso, Argentina’s reserves and Venezuela’s output will all look different by 2030, and none will move in lockstep. A process anchored to this quarter’s headlines will misread the curve a long-horizon investment has to live through. AMI builds strategic, business, and marketing plans against that curve, not the snapshot, so a strategy survives the cycle instead of reacting to whatever point happens to be visible today.

That is also why cross-functional planning matters more in Latin America than almost anywhere else. Capital sunk into a plant, a concession or a distribution build-out routinely takes five years or more to earn back, and a decade or longer for a product to reach full market penetration — a span crossing more than one US rate cycle, more than one dollar cycle, and, in every country ranked above, more than one election. Companies that plan for today’s world, rather than the range of worlds their investment will actually inhabit, are the ones most exposed to the risks this article describes. AMI’s strategic planning advisory exists to build that fuller range of outcomes into the plan before the capital goes out the door. To learn more, reach us at info@americasmi.com

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John Price

John Price is the Managing Director of Americas Market Intelligence. With 20 years of experience in Latin American market intelligence consulting, John has supervised nearly 1,200 client engagements and advises clients in more than 20 countries across Latin America. John’s areas of focus for AMI Perspectiva include Latin America’s natural resources, logistics and industrial products industries.

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