Tariff Uncertainty Is Expected to Slow Global Economic Growth This Year

Tariff Uncertainty Is Expected to Slow Global Economic Growth This Year

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While recent economic forecasts may suggest a surprising resilience in global growth, a closer examination reveals this is a temporary and tenuous effect driven by anticipatory trade behaviors. The true and more enduring headwind on the global economy is not the direct cost of tariffs, but the pervasive and long-term damage inflicted by policy uncertainty. This unpredictability is actively dampening business investment, reconfiguring global supply chains, and threatening the very foundations of the rules-based international trade system, with its full effects projected to materialize in 2026.

1. Executive Summary: The Pervasive Shadow of Tariff Uncertainty

The International Monetary Fund (IMF) has upgraded its 2025 global growth forecast to 3.0 percent, citing factors such as "front-loading ahead of tariffs," "lower effective tariff rates," and better financial conditions. This perspective, however, obscures a more fragile reality. In stark contrast, the World Bank’s June 2025 Global Economic Prospects report projects a significant downgrade in global growth to 2.3 percent, marking the weakest level since 2008 outside of a full recession. The World Trade Organization (WTO) further supports this dichotomy, noting that while a surge in shipments to beat the tariff crunch has provided a modest boost to the 2025 outlook, the full impact of these measures is still unfolding and is expected to result in a sharp drop in trade volume in 2026.   

The most significant economic harm stems from this lack of predictability. Experts from major corporations like Shell and institutions like Oxford Economics confirm that uncertainty paralyzes corporate decision-making on investment and hiring, often more so than the direct costs of tariffs. This is not merely a theoretical concept; its tangible effects are already being felt. U.S. manufacturing employment has declined by tens of thousands of jobs since the April 2025 tariff announcement, and the agribusiness sector faces a "five-alarm fire" due to retaliatory tariffs from major trading partners. Globally, supply chains are being permanently reconfigured as firms seek to avoid policy risk, a costly and irreversible process that may not be a net benefit for the U.S. economy.  

2. Introduction: Navigating a Tenuous Global Economy

The current global economic landscape is characterized by conflicting signals that challenge a straightforward analysis. On one hand, institutions like the IMF present a picture of surprising resilience. The IMF’s latest World Economic Outlook update projects a global growth rate of 3.0 percent for 2025 and 3.1 percent for 2026, marking an upward revision from its previous April forecast. Similarly, the Organization for Economic Co-operation and Development (OECD) notes better-than-expected resilience in the first half of 2025, although it forecasts a slowdown in growth for the rest of the year and into 2026.   

On the other hand, a more pessimistic narrative is emerging. The World Bank’s June 2025 Global Economic Prospects report forecasts a significant weakening of growth to 2.3 percent this year, a downturn that would be the slowest rate of global growth since 2008, discounting outright global recessions. This report explicitly attributes the slowing to a "substantial rise in trade barriers and the pervasive effects of an uncertain global policy environment".   

The central purpose of this report is to resolve this apparent contradiction. The answer lies in a nuanced understanding that distinguishes between the direct, often measurable, impact of tariffs and the broader, more insidious effect of policy uncertainty. The trade policies being pursued are not a static, predictable tax but part of an erratic, "weaponized" trade strategy. This unpredictability, more than the tariffs themselves, is the primary economic headwind. The following table provides a clear visualization of these competing projections from leading economic institutions, setting the foundation for a deeper analysis.   

Table 1: Key Global Economic Forecasts (2025-2026)

Institution

Global Growth Forecast 2025

Global Growth Forecast 2026

Key Commentary

IMF

3.0%

3.1%

Resilience due to "front-loading ahead of tariffs" and "lower effective tariff rates".   

World Bank

2.3%

2.5% (2027)

Significant downgrade from prior forecasts; growth could be even lower if trade restrictions escalate or uncertainty persists.   

OECD

3.2%

2.9%

Deceleration as early stockpiles are drawn down; "the full effects of higher tariffs and policy uncertainty have yet to be felt".   

WTO

0.9% (Merchandise Trade)

1.8% (Merchandise Trade)

Initial boost from anticipatory imports, but the full impact of tariff measures is still unfolding and will affect 2026.   

3. The Rationale and Reality of the Trade War

3.1 The "America First" Doctrine: An Examination of Pro-Tariff Arguments

The Trump administration's trade policies are predicated on a series of core arguments aimed at achieving economic and strategic objectives. A primary rationale is national security, with tariffs justified under Section 232 of the Trade Expansion Act of 1962 to protect industries like steel and aluminum, which are deemed critical to national defense. The administration's actions are presented as a direct response to foreign nations "flooding the U.S. market with cheap, often government-subsidized, steel and aluminum". The tariffs are also intended to address what the U.S. has described as longstanding unfair trade practices, including intellectual property theft and forced technology transfer.   

Another key objective is the re-shoring of production and domestic job creation. The policy aims to encourage companies to move production back to the U.S. to avoid tariffs, thereby supporting American jobs. The administration claims that first-term tariffs led to thousands of jobs and higher wages in the metals industry, with a report by the U.S. International Trade Commission finding that the tariffs reduced imports from China and "effectively stimulated more U.S. production of the tariffed goods". The administration further argues that tariffs serve as a source of revenue to finance future tax cuts. One economic analysis cited in a White House fact sheet suggests that a global 10 percent tariff could grow the economy by $728 billion, create 2.8 million jobs, and increase real household incomes by 5.7 percent.   

However, a deeper analysis reveals significant conflicts between the stated policy goals and the economic realities. The administration's goal of using tariffs as a bargaining chip for "coercive control" over other countries, pressuring them to renegotiate trade agreements or achieve foreign policy goals, is in direct opposition to the desire to make tariffs a permanent source of revenue. If tariffs are a temporary threat to force concessions, their success would logically lead to their removal, eliminating any long-term revenue stream. Conversely, if tariffs are intended to be a permanent fiscal tool, they lose their power as a negotiating lever. This inherent policy conflict creates a powerful layer of uncertainty for businesses, as they cannot predict the administration's true long-term objective.   

Furthermore, the administration's claim that exporting countries will pay for the tariffs is widely refuted by economic data. An IMF study found that U.S. importers primarily shoulder the cost of the tariffs on Chinese goods, and these costs are then passed on to American consumers in the form of higher prices. This means the revenue-generation and consumer-benefit arguments are fundamentally at odds with the evidence, as the tariffs function as a tax increase on U.S. households, estimated to be an average of $1,300 in 2025 and $1,600 in 2026.   

4. Uncertainty as the True Economic Cost

4.1 The Paralysis of Business Investment

While the direct cost of tariffs can be absorbed, the uncertainty they inject into the global economy has a far more profound and damaging effect. As Robin Mooldijk, president of projects and technology at Shell, articulated, the "bigger effect is even on the investments." The unpredictability of the business climate and the supply-demand balance makes companies question whether a project is worth doing at all, regardless of marginal cost changes.   

A comprehensive assessment by Oxford Economics confirms this, stating that the sharp rise in trade policy uncertainty is "likely to significantly harm global growth, particularly business investment". This is because many major decisions for firms—such as investment, hiring, R&D, and entering new markets—are costly and difficult to reverse. When a situation is unclear and the scale of downside risks is large, there is a strong incentive to postpone these major decisions until the outlook is more predictable. A World Bank paper quantified this effect, finding that a 1 percent increase in policy uncertainty can cause a 1 percentage point decline in world trade growth. This sentiment is also reflected in consumer confidence, which improved for the first time in five months in May 2025, a rebound directly attributed to the temporary pause in massive tariffs on China.   

A key example of how uncertainty is shaping economic data is the phenomenon of "front-loading" or stockpiling of imports. The IMF's upward growth revisions are partly a result of this behavior, with a surge in shipments as businesses raced to beat the tariff crunch. An OECD report indicates that early stockpiles of goods accumulated in anticipation of higher tariffs are now being drawn down. This anticipatory behavior creates a temporary, unsustainable boost to trade volumes and GDP. However, once these stockpiles are depleted, a sharp contraction in trade and investment is expected to follow, which explains why the "full effect will be felt heading into next year". The apparent resilience of the global economy is, therefore, an artifact of this defensive business behavior, masking the underlying damage being done by the very uncertainty that prompted it.   

5. Sectoral Impacts: A Dissection of Winners and Losers

5.1 U.S. Manufacturing in the Crosshairs

The promise of widespread job gains for the U.S. manufacturing sector has not been realized. An analysis of the August 2025 Jobs Day Release reveals that American manufacturing employment is shrinking in response to the tariffs. Since the April 2025 "Liberation Day" tariff announcement, overall manufacturing employment has declined by 42,000 jobs, with the manufacturing sector losing 12,000 jobs in August alone. Hiring and job opening rates have also fallen below 2024 levels, and manufacturing workers' wage growth has stagnated, falling by 8 cents per hour in April 2025 and remaining sluggish thereafter.   

The tariffs are also increasing costs for U.S. manufacturers by raising the price of imported raw materials like steel and aluminum. This squeezes profit margins and discourages new investment. For instance, farm equipment giant John Deere cited tariffs in announcing that its sales had dipped, revealing it had racked up roughly $300 million in tariff-related costs and was laying off more than 200 workers. The evidence presented directly contradicts the administration's claims of broad job gains and economic strengthening from the tariffs.   

The difference in outcomes between the first term and 2025 can be explained by a critical shift in policy. The initial tariffs were more targeted and had exemptions for many countries, which inadvertently created loopholes exploited by countries with excess capacity. However, the tariffs effective March 12, 2025, ended these exemptions and raised rates on aluminum from 10 to 25 percent for all countries, while also applying the 25 percent duty on steel to countries like Canada, Mexico, the European Union, and Japan. This shift from a porous, targeted policy to a broad, sweeping one is likely why the negative economic impacts—job losses and stalled investment—are becoming more apparent in 2025. The initial "boon" for domestic industries may have been dependent on a less aggressive policy that has now been abandoned.   

5.2 The Agribusiness Crisis: A Case Study in Retaliation

The agricultural sector has been particularly hard hit by retaliatory tariffs. China, the top buyer of U.S. soybeans by a significant margin, has ended all agricultural purchases in response to U.S. tariffs, opting to buy from Brazil instead. This retaliatory 25 percent tariff, on top of existing taxes, has effectively priced U.S. soybeans out of the Chinese market.   

This has created a "five-alarm fire" for U.S. farmers, who are seeing billions lost and an increase in farm bankruptcies. The lack of export buyers is causing cash prices to tumble, pushing farmers "deeper into the red" just ahead of the harvest season. The economic pain is not just a commercial issue; it is a political one. The disquiet is channeling into anger at the administration, with lawmakers in predominantly pro-Trump states worried about the political fallout in the 2026 mid-term elections.   

This crisis highlights that the U.S. trade deficit is a structural problem that cannot be solved with bilateral tariffs alone. The U.S. runs a trade deficit with over 100 countries due to its low savings rate. As noted by Nicholas Lardy of the Peterson Institute, even if the deficit with China were eliminated, it would simply shift to other countries. The U.S. International Trade Commission and the Congressional Research Service have also concluded that the trade deficit is a macroeconomic issue and that attempting to address it with trade policy alone is likely to be counterproductive and create distortions. The fact that the U.S. has a trade deficit with its major partners and that these are the very countries targeted by the tariffs suggests the policy is based on a flawed economic premise that fails to account for these deeper macroeconomic realities.   

5.3 Supply Chain Recalibration: From Disruption to Permanent Shift

The tariffs are not a temporary inconvenience for global commerce; they are leading to a permanent, structural reshaping of global supply chains. Firms had established complex, costly supply chains in anticipation of free trade and stable policy. The unexpected tariffs served as a "shock," forcing these firms to engage in a costly search for new suppliers.   

Anecdotal and aggregate data show businesses are actively relocating import sourcing away from China towards other low-cost Asian countries, such as Vietnam, Thailand, and Indonesia. Aggregate data visually confirms a sharp decline in China's share of U.S. imports and a corresponding rise in other Asian countries' shares. This structural shift extends beyond physical goods. As companies focus on regional markets to mitigate costs, there is a natural push towards developing more localized, multilingual content and marketing to engage new audiences.   

This systemic recalibration is also linked to the retreat of Foreign Direct Investment (FDI). The World Bank notes that FDI inflows to emerging and developing economies have been steadily falling over the past decade, a trend accelerated by "elevated trade tensions, policy uncertainty, and heightened macroeconomic and geopolitical risks". This creates a negative feedback loop: as FDI retreats, these developing economies become less able to create jobs and reduce poverty, increasing their vulnerability to future shocks and further diminishing their appeal for investment. The U.S. policy, therefore, has global spillover effects that disproportionately harm the world's most vulnerable populations.   

6. Global Contagion and the Retreat from Multilateralism

6.1 The Cycle of Retaliation

The trade war is not a bilateral conflict; it has global implications, affecting all countries and all industries. The U.S.'s protectionist stance has been met with specific retaliatory measures from its major trading partners, creating a cycle of escalation. The European Union has reinstated tariffs on €4.5 billion worth of U.S. imports, including bourbon, motorbikes, and boats, with plans for a second phase of tariffs. Canada has imposed reciprocal tariffs on C   

12.6billionofsteelandC3 billion of aluminum products, among others. China has announced tariffs of 15 percent on agricultural products like chicken, wheat, and corn, and 10 percent on sorghum, soybeans, and pork.   

This "beggar thy neighbor" policy harms all participants by disrupting the principle of comparative advantage and leading to inefficient resource allocation. The retaliatory tariffs on U.S. exports further hurt American producers and reduce their competitiveness in foreign markets. This is particularly damaging for export-oriented industries like agribusiness, as demonstrated by the soybean crisis.   

6.2 The Erosion of Global Cooperation

The pursuit of protectionism is part of a broader shift away from the post-Cold War world of liberalized trade and multilateralism. This is not merely an economic conflict but is intertwined with geopolitical and cultural dimensions. A report from the European Council on Foreign Relations concluded that the U.S. is waging a "culture war" on Europe, openly attacking mainstream political parties and extorting institutions in trade negotiations. These policies are undermining the international security and cooperation that were fostered by economic integration.   

Furthermore, the elevated trade tensions and policy uncertainty weaken the effectiveness of traditional economic tools, such as monetary policy. A blog post from the European Central Bank notes that when economic uncertainty is high, a change in interest rates has a "much more muted impact on the economy" than when uncertainty is low. This is because businesses, paralyzed by policy uncertainty, do not respond to traditional monetary signals by investing or hiring. This suggests that the trade war is not just an economic headwind on its own but also actively ties the hands of central banks in managing their economies, further complicating efforts to maintain price and economic stability.   

7. Economic Projections and the Outlook for 2025-2026

7.1 A Synthesis of Global Forecasts

When viewed in isolation, the forecasts from various global institutions can appear contradictory. However, a synthesis of their analyses reveals a cohesive and sobering picture. The IMF projects global growth at 3.0 percent for 2025 and 3.1 percent for 2026, while acknowledging persistent downside risks from higher tariffs and uncertainty. In contrast, the World Bank forecasts a slowdown to 2.3 percent in 2025, noting that global output will remain "materially below January projections" and that the outlook is "largely hinged on the evolution of trade policy globally". The OECD's forecast projects a deceleration in global growth to 2.9 percent by 2026 as the effects of stockpiling wear off.   

The WTO's analysis provides a crucial piece of the puzzle, projecting a modest 0.9 percent increase in merchandise trade for 2025, driven by an initial surge in U.S. imports, but forecasting a sharp drop to 1.8 percent in 2026 as the "full impact of the recent tariff measures is still unfolding".   

This analysis reveals that the debate over the effects of tariffs is largely a matter of timing and what is being measured. The IMF's positive revisions are based on a short-term, defensive reaction to policy uncertainty, as businesses front-loaded orders to beat potential future tariff hikes. The World Bank and OECD's more pessimistic long-term outlooks, in contrast, account for the depletion of these stockpiles and the sustained damage to investment. The apparent "contradiction" is not a disagreement on the underlying reality but a difference in perspective—one short-term and tactical, the other long-term and structural. The query's premise that the full effect will be felt next year is directly supported by this synthesis of data.

7.2 Persistent Risks to the Outlook

Beyond the direct and indirect impacts of trade policy, several other factors pose significant risks to the global economic outlook. Geopolitical tensions and escalating conflicts remain a significant downside risk, as noted by the World Bank. Additionally, while global inflation is expected to fall, core inflation is declining more gradually, and the prospect of "higher for even longer interest rates" remains a possibility. The tariffs themselves can be a source of inflation by raising import prices, adding another layer of complexity to monetary policy efforts.   

8. Strategic Recommendations for a Turbulent Environment

For businesses and policymakers alike, the current economic climate necessitates a fundamental shift in strategy.

For Businesses:

  • Prioritize Supply Chain Diversification: Firms must acknowledge that the recent tariffs are not a temporary inconvenience but are leading to a permanent structural shift. Actively seeking alternative sourcing partners beyond tariff-affected regions is no longer a strategic option but a necessity to mitigate policy risk.   
  • Engage in Robust Scenario Planning: With tariffs now a "business-as-usual" reality and deeply intertwined with political objectives, companies must plan for a range of policy outcomes rather than waiting for a return to predictability.   
  • Foster Local and Regional Relationships: As global trade becomes more fragmented, investing in localized content and forging stronger relationships with local stakeholders will be critical for gaining trust and remaining competitive in regional markets.   

For Policymakers:

  • Re-engage in Multilateral Cooperation: A return to sustained global growth is contingent on re-establishing a rules-based system that promotes cross-border investment and trade. This requires determined multilateral policy efforts to foster a more predictable and transparent environment for resolving trade tensions.   
  • Provide Predictability: Policymakers should focus on reducing volatility and providing clearer policy signals to stabilize expectations for firms and consumers. Evidence suggests that even a "bad trade deal is better than no deal at all" because it provides a measure of certainty that reduces the negative effects of unpredictability.   
  • Address Deeper Imbalances: Efforts to solve trade deficits should focus on underlying macroeconomic issues, such as low savings rates, rather than relying on trade policy, which has been shown to be counterproductive and creates economic distortions.   

9. Conclusion: A Tenuous Resilience Amid Persistent Uncertainty

The global economy's apparent resilience in 2025 is tenuous and temporary. It is largely a product of a short-term, defensive reaction to policy uncertainty, rather than a sign of a strong foundation. The analysis demonstrates that the true economic cost of the trade war is not merely the direct tax imposed by tariffs, but the paralysis of decision-making caused by a lack of predictability. The full effects of this strategic shift have not yet been felt and are projected to weigh heavily on global growth in 2026. The challenges ahead, from geopolitical fragmentation to slowed growth and weakened monetary policy, will require a fundamental shift in strategy from both policymakers and businesses. Sustained long-term growth is contingent on a return to predictability and a renewed commitment to global cooperation.

Table 2: Sector-Specific Economic Impacts of Tariffs and Uncertainty

Sector

Key Impact

Quantitative Data

Qualitative Commentary

 

U.S. Manufacturing

Job Losses, Stagnant Wages, Increased Input Costs

Declined by 42,000 jobs since April 2025. John Deere cited $300 million in tariff-related costs.   

Uncertainty and rising costs are discouraging hiring and investment, contradicting claims of job creation.   

 

U.S. Agribusiness

Loss of Major Export Market, Price Collapse, Bankruptcies

Billions lost in U.S. agriculture; record number of farm bankruptcies. China's retaliatory tariffs pushed prices "deeper into the red" for farmers.   

The Chinese boycott of U.S. agricultural goods is creating a "five-alarm fire," with severe economic and political consequences for farm communities.   

 

Global Supply Chains

Sourcing Diversion, Costly Recalibration

Share of China's imports to the U.S. declined after July 2018, with a corresponding rise in other Asian countries.   

Firms are permanently reconfiguring supply chains to avoid unpredictable policy risks, a process that is costly and disruptive.   

 

Consumers & Households

Higher Prices, Reduced Choice, Tax Increase

Average tax increase per U.S. household of $1,300 in 2025 and $1,600 in 2026.   

U.S. importers and consumers bear the cost of tariffs, which function as a tax on American households.