You become very rich from one resource, you relax.
For a quarter century, Rio de Janeiro has grown wealthy on oil royalties, yet two economists warn that this abundance has quietly hollowed out the state's broader economy — a phenomenon the world first recognized when the Netherlands discovered natural gas and watched its industry wither. The paradox of resource wealth, when left unmanaged, is that it does not build economies so much as it replaces them. Now Brazil's Supreme Court must decide not merely how to divide petroleum revenues, but whether a moment of fiscal pressure can become the catalyst for a state to rediscover what it means to produce beyond a single source.
- Rio's oil royalties have grown nearly six times faster than inflation in 25 years, reaching R$26 billion annually — a figure so large it now equals 42% of the state's main tax revenue, making the dependency structural rather than incidental.
- While the extractive sector expanded 56% since 2010, manufacturing contracted 14.5% and construction fell 19.5%, suggesting the oil windfall has been crowding out the very diversification that would make Rio resilient.
- The state government flatly rejects the Dutch Disease diagnosis, pointing to its status as Brazil's second-largest economy and a complex industrial base that includes steel, automotive, and a tourism sector worth R$10.6 billion.
- A 2013 law that would cut Rio's royalty share from 30% to 20% has been frozen by injunction for 13 years and is now before the Supreme Court, with economists arguing that rising production volumes would more than offset the smaller percentage.
- A parallel tax reform is projected to lift Rio's consumption-tax revenue share from 7% to 8.5%, offering a potential lifeline independent of oil — if the state chooses to seize it rather than wait for the next royalty check.
Rio de Janeiro has been flush with oil money since 1997, when Brazil's petroleum concession law opened the royalty spigot. Last year the state collected R$26 billion in royalties — 42 percent of its main sales-tax revenue — and the figure may climb to R$34 billion this year as global crude prices rise. By surface appearances, it is an extraordinary windfall.
But economists Sérgio Gobetti and Luana Rebouças, writing for the Brazilian Institute of Economics, argue that Rio is exhibiting textbook Dutch Disease: the paradox in which resource abundance, poorly managed, strangles the rest of the economy. The original syndrome emerged in the 1970s Netherlands, where natural gas wealth pushed up the guilder and made Dutch manufacturing uncompetitive. Rio's version, Gobetti contends, is driven less by currency effects than by corruption and mismanagement — the political temptation to relax when easy money keeps arriving.
The numbers are unsparing. Between 2010 and 2023, Rio's oil-and-gas sector grew 56 percent, while manufacturing shrank 14.5 percent and construction fell 19.5 percent. The state government rejected the diagnosis, citing its rank as Brazil's second-largest economy, its role as South America's logistics hub, and its annual contribution of roughly R$460 billion to federal coffers. Framing Rio as economically limited, officials argued, ignores its steel, automotive, and tourism industries.
The dispute has landed before Brazil's Supreme Court, which is finally hearing arguments on a 2013 law — blocked by injunction for 13 years — that would reduce Rio's royalty share from 30 percent to 20 percent, redistributing the difference to inland states. Rio warns of fiscal destabilization. Gobetti counters that expanded national oil production means the state would still receive roughly double its 2013 royalty income even under the smaller percentage. The real question, he argues, is not affordability but political will: whether a reduced share would finally force Rio to diversify.
A concurrent tax reform offers a quieter opening, projecting an increase in Rio's consumption-tax share from 7 to 8.5 percent — revenue untethered from oil. Whether the Supreme Court's ruling or that reform becomes the turning point, the deeper judgment being rendered is about what a state owes itself when one resource has become both its greatest asset and its most comfortable excuse.
Rio de Janeiro has been swimming in oil money for a quarter century. Since 1997, when Brazil's petroleum concession law opened the floodgates, the state's royalty revenues have grown nearly six times faster than inflation. Last year the figure hit R$26 billion—equivalent to 42 percent of everything the state collects through its main sales tax. This year it could reach R$34 billion as crude prices climb on global markets. By any measure, it looks like a windfall.
But two economists studying the numbers have reached a troubling conclusion: Rio is sick, and the oil money is making it sicker. Sérgio Gobetti and Luana Rebouças, in a study published by the Brazilian Institute of Economics, argue that the state exhibits textbook symptoms of what economists call Dutch Disease—the paradox in which resource abundance, poorly managed, actually strangles the rest of the economy. The term originated in the 1970s when the Netherlands discovered vast natural gas reserves. The sudden wealth pushed up the value of the guilder, making Dutch manufactured goods expensive abroad, and the country's industrial base withered. Rio's version, Gobetti argues, stems less from currency effects than from something more corrosive: corruption and mismanagement of the windfall.
The data tells a stark story. Between 2010 and 2023, Rio's extractive industries—dominated by oil and gas—expanded their economic output by 56 percent. Meanwhile, the rest of the state's manufacturing sector contracted by 14.5 percent. Construction fell 19.5 percent. The message embedded in these numbers is blunt: as oil revenues flowed in, the state relaxed. Why diversify, why invest in other industries, when easy money kept arriving? "You become very rich from one resource, you receive easy money and you relax in the sense of not having a policy to develop other sectors," Gobetti explained. The abundance, rather than catalyzing broader development, had the opposite effect—it crowded out everything else.
The state government rejected the diagnosis outright. In a statement, Rio's administration insisted that comparing the state to Dutch Disease was "biased and unjust." It pointed to its status as Brazil's second-largest economy, its role as South America's premier logistics hub, and its contribution of roughly R$460 billion annually to federal coffers—about 20 percent of the national total. To frame Rio's productive potential as limited, the government argued, was to misread the state's actual economic complexity, which includes steel manufacturing, automotive production, and tourism that generated R$10.6 billion in revenue.
The dispute has moved to Brazil's Supreme Court, where the real stakes are being decided. In 2013, Congress passed a law that would reduce Rio's share of oil royalties from 30 percent to 20 percent, redistributing the difference to non-coastal states and municipalities. President Dilma Rousseff vetoed it, but Congress overrode her. The law was blocked by a preliminary injunction from Justice Cármen Lúcia. Now, after 13 years of waiting, the court is finally hearing arguments on the merits. Rio argues that the change would destabilize its finances. The state and municipalities with ocean frontage—the so-called confronting states—currently receive more than 50 percent of all royalty revenue, while the federal government gets 38 percent, despite the Constitution declaring that petroleum belongs to the Union.
Gobetti's analysis suggests the fears may be overblown. In 2013, Rio received R$8 billion in annual royalties. If the new law had been in effect then, the state would have received R$17 billion today—double the 2013 figure—because oil production in Brazil has expanded so dramatically. "The growth of the pie, resulting from increased petroleum production in the country, would have compensated for the smaller slice reserved for the confronting states," he wrote. Production is expected to keep rising for another decade, making a gradual transition to the new formula entirely feasible. The real issue, Gobetti argues, is not whether Rio can afford the change, but whether the state will finally use the transition as a moment to break its addiction to oil revenue and rebuild the diversified economy it once had.
A recent tax reform offers one possible path forward. The replacement of the current sales tax with a new consumption-based tax is projected to increase Rio's revenue share from 7 percent to 8.5 percent, giving the state new resources independent of oil. Whether Rio's government will seize that opportunity, or whether the Supreme Court's decision will force the issue, remains to be seen. The court's judgment, expected after Justice Flávio Dino completes his review, will determine not just how much money flows to Rio, but whether the state finally confronts the deeper question: what happens when one resource becomes too important to ignore and too tempting to reform.
Citas Notables
The abundance of petroleum resources, instead of contributing to the development of the entire economy, ends up having the opposite effect.— Sérgio Gobetti, economist at the Institute of Applied Economic Research
Any attempt to frame Rio in a definition that limits its productive potential is a biased and unjust strategy.— Rio de Janeiro state government statement
La Conversación del Hearth Otra perspectiva de la historia
So Rio has been getting richer from oil while everything else gets poorer. That seems backwards.
It is backwards. The extractive sector grew 56 percent while manufacturing shrank 14.5 percent. It's not that oil money directly destroys factories—it's that when you have easy revenue, you stop investing in the harder work of building other industries.
But Rio says it's still the second-largest economy in Brazil. Isn't that a counterargument?
It is, and it's not. Rio is large, yes. But the economists are saying that without the oil dependency, it could have been larger and more resilient. The state is betting everything on one volatile commodity.
The Supreme Court case is about cutting Rio's share from 30 to 20 percent. Why would the state accept that?
It might not have a choice. But the study shows that even at 20 percent, Rio would be receiving more money than it did in 2013 because oil production has grown so much. The real loss is political, not financial.
What would force Rio to actually diversify?
That's the question. The tax reform might help by giving the state new revenue sources. But without pressure—maybe from the court ruling—there's no incentive to change. Easy money is hard to give up.
Is this actually Dutch Disease, or is it just bad governance?
Gobetti says it's both. The classic Dutch Disease is about currency effects. Rio's version is about corruption and mismanagement of the windfall. The disease is real, but the diagnosis matters for the cure.