2026 Global Economic Outlook: When Fiscal Expansion, the AI Revolution, and Security Logic Reshape the Growth Landscape

2026 Global Economic Outlook: When Fiscal Expansion, the AI Revolution, and Security Logic Reshape the Growth Landscape

The underlying logic of global economic growth is undergoing a silent but profound restructuring. In its annual "World Outlook" released in November 2025, Deutsche Bank Research's chief economists Jim Reid and David Folkerts-Landau offered a seemingly contradictory yet telling judgment: global real growth in 2026 will be broadly flat versus the past two years, but the sources of growth momentum are undergoing a fundamental shift.

The significance of this judgment goes far beyond an annual forecast report itself. It points to a deeper transformation in the international order: the marginal utility of monetary policy is diminishing, fiscal space has become a new frontier of great-power competition, and security—whether economic, energy, or technological—is replacing efficiency as a central consideration in national strategy.

The Return of Fiscal Policy: The Growth Engine Shifts Gears

Over the past fifteen years, the main driver of global economic growth came from central bank balance sheet expansion and an ultra-low interest rate environment. In 2026, this model will formally give way to fiscal policy.

Germany is the most symbolic case. After years of economic stagnation, Europe's largest economy is poised for the most pronounced rebound among major economies. Marc Schattenberg and Robin Winkler of Deutsche Bank Research predict that German GDP will grow by 1.5% in both 2026 and 2027. The core support for this forecast is not an export recovery, but "significantly expansionary fiscal policy" and increased public spending.

Berlin's fiscal pivot has significance beyond national borders. German government spending in defense and infrastructure will "boost the entire euro-area economy," because higher-than-expected defense orders are flowing to domestic producers, amplifying the defense multiplier effect. This logic is changing how the European economy operates: from relying on export competitiveness to relying on an internal investment cycle.

However, the sustainability of fiscal expansion depends on one key variable: borrowing costs. Deutsche Bank strategists expect that as the equilibrium interest rate rises and the global term premium is rebuilt, the 10-year U.S. Treasury yield will reach 4.45% by the end of 2026. This means that the marginal cost of government borrowing is rising systematically, and the tension between expanding fiscal space and debt sustainability will run through the whole of 2026.

The U.S. situation is more complex. The federal budget deficit is expected to remain around 6.7% of GDP, and a decline in tariff revenue could further widen this gap. A delicate balance will form between the boost to household income from tax cuts and market concerns caused by a widening fiscal deficit.

AI Investment: From Narrative to Productivity

If fiscal policy is the "slow variable" for 2026 growth, then AI investment is the "fast variable."The Deutsche Bank report explicitly points out that although the tariff announcements in Washington in April 2025 had led the market to believe that trade policy would become the main theme of the year, “in fact, it was the rapid investment in and adoption of AI that continued to dominate market sentiment.” This judgment reveals an important shift in the current global economic narrative: capital expenditure from the technological revolution is reshaping the investment landscape in a super-cycle manner.

However, the productivity transformation of this investment does not happen automatically. The report’s authors warn: “Given the pace of technological progress, it is hard to believe that this will not translate into meaningful productivity gains. However, the ultimate winners and losers will depend on a complex interplay of evolving factors, many of which may not become apparent until after 2026.”

The deeper implication of this judgment is that AI investment is still in the infrastructure build-out phase, and the distribution of its economic returns will be highly uneven. The reacceleration of the U.S. economy in 2026 is partly because growth momentum is expanding from AI-related capital expenditure into broader areas. S&P 500 earnings per share are expected to reach $320, with a year-end target of 8,000 points—this reflects the market’s expectation that the AI productivity dividend will spread from tech giants to a broader range of companies.

In Europe and Japan, the transmission mechanism of AI investment is more complex. The European Central Bank is expected to keep its policy rate at 2% until the end of 2026, with the first rate hike possibly postponed until mid-2027. This cautious stance reflects the structural dilemma facing the European economy: on the one hand, AI investment is contributing to a positive trend; on the other hand, labor market tightening caused by population aging will continue to constitute a negative supply-side shock.

The Reconstruction of the Trade System: Rebalancing Efficiency and Security

The most tension-filled area in the 2026 global economic landscape may be the restructuring of the international trade system.

Mark Wall, Deutsche Bank’s chief European economist, estimates that the direct cost of U.S. tariffs on the EU is about 0.5% of GDP, with the impact set to appear in the second half of 2025 and the first half of 2026. But more noteworthy are the structural changes beyond tariffs: the EU is simultaneously dealing with external pressure from China, the United States, and Russia while advancing its internal competitiveness agenda.

The continuation of the Draghi agenda will be a core thread of European policy in 2026. The European Commission will make gradual progress in the following areas:

Security and Defense: The €150 billion “European Security Action” loan program will make its first disbursement, while a new roadmap will be formulated to close defense gaps by 2030.

Deepening the Single Market: Cutting bureaucratic procedures and enhancing economic security through a critical raw materials center.

Savings and Investment Union: Strengthening the European Securities and Markets Authority and revisiting pan-European pension products, but major pension, tax, or insolvency reforms are “unlikely” to be achieved.

Innovation Gap: Addressing scale-up financing, computing infrastructure, and AI adoption issues.The common logic behind these initiatives is that, as the open trading system comes under pressure, the EU is trying to maintain its economic position through deepening the internal market and strategic autonomy. But the report also admits that the EU's structural vulnerabilities mean that "the confidence intervals around point estimates are wide."

China and Asia: Divergence Amid Structural Adjustment

China's economic trajectory in 2026 will exhibit a characteristic different from the past. Deutsche Bank's chief China economist, Xiong Yi, predicts that GDP growth will slow to 4.5%, mainly due to diminishing returns from the "anti-involution" policy and consumer stimulus measures.

The deeper implication of this forecast lies in the transformation of China's growth model. The "anti-involution" reform aims to reshape supply-side behavior, shifting from the pursuit of scale expansion to the pursuit of efficiency and quality. The short-term cost of this transformation is slower growth, but the long-term goal is to build a more sustainable economic structure.

On inflation, the consumer price index is expected to reach 1.5%, and the producer price index will turn positive in the second half of 2026. This reflects that the policy focus on price stability is shifting from deflation risks to mild reflation.

Xiong Yi's assessment of the 15th Five-Year Plan is noteworthy: China's leadership is "more confident" about the country's technological capabilities and economic resilience, even though the external environment is more challenging. This confidence is based partly on China's progress in AI and advanced manufacturing, and partly on its ability to make structural adjustments to its economic management system.

India is a story of another dimension. The report predicts that India will overtake Japan in 2026 to become the world's fourth-largest economy, and is expected to become the third-largest in 2028. This structural rise is not only a reflection of growth speed, but also another landmark event in the eastward shift of the global economic center of gravity.

The Japanese economy is expected to maintain moderate growth. The policy dilemma facing the Bank of Japan is that, on the one hand, rising wages and slowing inflation may support household consumption; on the other hand, fiscal expansion risks and a weakening yen pose potential threats.

UK: Policy Support Amid Political Uncertainty

The UK economic story is somewhat simpler. Deutsche Bank's chief UK economist, Sanjay Raja, predicts that UK GDP growth will slow from 1.4% in 2025 to 1.2% in 2026. But "external geopolitical headwinds will give way to domestic headwinds"—weak hiring, slowing wage growth, and fiscal policy and political uncertainty will restrain spending and investment intentions over the cycle.

On the positive side, both fiscal and monetary policy are expected to remain "supportive." The budget announced on November 26 was assessed by Raja as "better than expected": fiscal buffers increased significantly, borrowing remains on a downward trajectory, and adjustments to gilt issuance forecasts were moderate.

The Core Logic of Structural Change

Bringing together the above country analyses, the global economic landscape in 2026 exhibits several cross-cutting structural changes:First, the strategicization of fiscal space. Fiscal policy is no longer merely a tool for demand management, but a strategic resource for national competition. Germany is using fiscal space for defense and infrastructure, the United States is using tariff revenue for targeted fiscal relief, and the European Union is financing defense and security through joint borrowing. The allocation of fiscal resources is shifting from considerations of economic efficiency to considerations of strategic security.

Second, the long-termization of technology investment. AI investment is shifting from a short-term market narrative to a long-term capital expenditure cycle. But the realization of productivity dividends takes time and is unevenly distributed. Countries that can effectively combine AI technology with their industrial base, human capital, and institutional environment will reap disproportionate gains.

Third, the securitization of the trade system. Although uncertainty in trade policy has somewhat receded, structural adjustments in trade relations are still continuing. While advancing its competitiveness agenda, the European Union is incorporating economic security into its core policy framework. Critical raw materials, computing infrastructure, and defense capabilities have become new strategic domains.

Fourth, the diversification of growth centers. India is about to become the world's fourth-largest economy, China's growth model is undergoing transformation, and Germany's fiscal stimulus is changing Europe's growth landscape. The sources of global economic growth are shifting from a single driver to multiple drivers, which increases both the resilience of the system and the complexity of coordination.

The Deutsche Bank report characterizes 2026 as a year of "seeking progress while maintaining stability." But what underpins this judgment is a deeper restructuring of the post-pandemic global economic order: the logic of security is becoming embedded at the core of economic policy, the technological revolution is reshaping the boundaries of productivity, and fiscal space is becoming a new battlefield for great-power competition. In this sense, 2026 will indeed "not be boring."