The global economy runs on a paradox: the system's main imbalances do not necessarily weaken it in the short term; many times they sustain it.

China maintains enormous export capacity and accumulates trade surpluses. The United States sustains large fiscal deficits and finances its spending through debt. Between these two dynamics, an international liquidity circuit emerges that ultimately favors financial markets, especially Wall Street.

The central question is not only economic. It is geopolitical: can the world keep depending on a model in which one power produces surpluses while another absorbs capital by issuing debt?

Two imbalances driving the global system

The first imbalance is China's export model. China sells more to the world than it buys. Its manufacturing strength, industrial scale, and ability to produce competitive goods allow it to accumulate large trade surpluses.

The second imbalance is the U.S. fiscal deficit. The United States spends more than it collects and finances the gap by issuing public debt. Unlike other countries, it can do so on favorable terms because it issues the world's main reserve currency: the dollar.

These two processes are connected. The surpluses generated by exporting economies look for safe, liquid, and profitable assets. The United States offers the deepest financial market in the world. As a result, part of global savings is channeled into Treasuries, U.S. equities, technology, investment funds, and major corporations.

In other words: China exports goods, the United States exports debt, and Wall Street absorbs liquidity.

The S&P 500 as a reflection of American financial power

The S&P 500 is not just a stock index. It represents the corporate, technological, and financial center of the United States. Many of the companies dominating key sectors are there: artificial intelligence, software, semiconductors, defense, healthcare, energy, consumption, and financial services.

When global liquidity is abundant, an important share flows into U.S. assets. This helps sustain market valuations, especially for companies seen as strategic or long-term leaders.

That is why the U.S. stock market should not be analyzed only through corporate earnings or technological innovation. It should also be understood as part of a global financial architecture in which the dollar, U.S. public debt, and international capital flows all play a central role.

Does Wall Street rise because the U.S. economy is strong, or because the global financial system has no equivalent alternative?

The paradox of imbalances

In theory, a large fiscal deficit should be a warning sign. So should a persistent trade surplus accompanied by weak domestic consumption. Yet in practice these imbalances have helped sustain the system.

China needs exports to maintain production, employment, and industrial influence. The United States needs debt to sustain spending, consumption, strategic investment, and global presence. Both models contain internal tensions, but they also complement each other.

The result is an uncomfortable relationship: two powers compete geopolitically while remaining tied together by trade, financial, and monetary flows.

This does not mean permanent stability. It means mutual dependence.

Economic war does not always look like war

The rivalry between China and the United States is often explained through tariffs, sanctions, technology restrictions, semiconductors, Taiwan, or supply chains. But there is another, less visible dimension: the international financial architecture.

China competes through production, infrastructure, advanced manufacturing, and trade. The United States competes through the dollar, capital markets, public debt, technological innovation, and its ability to attract global savings.

The competition of the twenty-first century will not be defined only by who produces more, but by who controls the channels through which capital circulates.

One power dominates the factory. The other dominates the currency and the markets.

What does this mean for Latin America?

For Latin America, this global dynamic has direct consequences. The region is sensitive to global liquidity cycles, commodity prices, U.S. interest rates, and Chinese demand.

When liquidity is abundant, emerging markets can receive more investment, improve access to financing, and benefit from better prices for some goods. But when liquidity shrinks, the region tends to face capital outflows, currency depreciation, imported inflation, and higher debt costs.

Latin America sits between two forces: China as a buyer of raw materials and investor in infrastructure, and the United States as the hemisphere's financial, political, and monetary center.

Can Latin America use this rivalry to diversify its development, or will it keep reacting passively to cycles defined elsewhere?

And what does it imply for the BRICS?

The BRICS seek to expand their influence in the global economy, promote the use of national currencies, and reduce dependence on the dollar. Yet the challenge is considerable.

The international financial system remains deeply tied to the dollar. Reserves, debt markets, global trade, international payments, and the liquidity of U.S. assets continue to give the United States a structural advantage.

The paradox is that many countries wishing to reduce dependence on the dollar still operate within a system where the most liquid and safest assets are denominated in dollars.

That is why a multipolar financial architecture will not be built through political declarations alone. It requires deep markets, institutional trust, efficient payment mechanisms, monetary stability, and the capacity to absorb large volumes of capital.

The question for the BRICS is not only whether they can challenge the dollar. It is whether they can build an alternative reliable enough for the world to use.

Long-term risks

The current model can last for years, but it accumulates risks.

The system will not necessarily collapse because of its imbalances. But it can become more vulnerable the more it depends on them.

  • Fiscal risk: if U.S. debt keeps growing, interest payments may limit the government's room to maneuver and increase pressure on bond markets.
  • Trade risk: if China maintains high industrial surpluses, other countries may respond with more barriers, tariffs, or technology restrictions.
  • Financial risk: if markets get used to abundant liquidity, excessive valuations may form in certain sectors.
  • Geopolitical risk: as competition between the United States and China intensifies, any break in their trade or financial links could generate global effects.

Possible scenarios

1. Continuity of the current model

China maintains export strength, the United States continues to finance deficits through debt, and financial markets keep receiving global liquidity. In this scenario, Wall Street retains a dominant position.

2. Trade fragmentation

Tensions between China and the United States grow. More tariffs, sanctions, and technology restrictions appear. Supply chains are reorganized and global trade becomes more expensive.

3. Pressure on U.S. debt

Investors begin demanding higher yields to finance U.S. public debt. This raises the cost of credit, affects equity valuations, and reduces appetite for risk.

4. Gradual rise of a multipolar system

The BRICS and other emerging countries develop alternative payment mechanisms, more trade in national currencies, and new financing channels. The dollar does not disappear, but its relative dominance slowly begins to decline.

Conclusion

The world economy does not function only through productivity, trade, or innovation. It also functions through imbalances.

China produces surpluses. The United States issues debt. Wall Street absorbs liquidity. Latin America receives the effects of these cycles. The BRICS try to build alternatives. And the dollar remains at the center of the system.

The deeper question is whether this model represents a form of stability or a gradual accumulation of fragility.

Can a global economy based on debt, surpluses, and liquidity keep sustaining itself indefinitely?

Are emerging countries prepared for a sudden change in international financial conditions?

Can Latin America turn this global rivalry into a strategic opportunity?

And will the BRICS be able to build an alternative financial architecture that does not depend on the same mechanisms they criticize today?

These questions will define an important part of the economic and geopolitical debate in the coming years.