Industrial Restructuring Behind US State-Level Economic Forecasts: Defense Orders, AI Investment, and the Rise of Southern Manufacturing

Introduction

The latest U.S. state economic forecast released by TD Economics shows a notable divergence in growth patterns across U.S. states in 2026. On the surface, this is reflected in differences in GDP and employment data, but in essence it reflects a structural transformation underway in the U.S. industrial system. Long-term contracts in the defense manufacturing sector, explosive investment in artificial intelligence infrastructure, and the rise of advanced manufacturing clusters in the South are redefining the economic competitiveness of individual states. Based on this forecast, this article will analyze the deeper changes taking place in the U.S. industrial landscape.

Key Observations

1. Defense manufacturing has become the "ballast stone" of the Northeast economy

Connecticut is a typical representative of this trend. Over the past three months, Electric Boat has received nearly $20 billion in Navy contracts for the construction of Columbia-class and Virginia-class submarines. As a result, employment in the state's transportation equipment manufacturing sector grew 2.4% year-over-year, well above the national average. Despite challenges from trade uncertainty and energy price volatility, defense orders provide a multi-year demand anchor, supporting the state's GDP growth of 1.8%. This shows that against a backdrop of rising federal fiscal uncertainty, defense spending has become the most stable industrial policy tool.

2. AI and the knowledge economy drive growth, but employment elasticity has declined

Massachusetts presents a paradox: in 2025, its information industry contributed even more to GDP growth than the national level, yet the state experienced net job losses that same year. In the first quarter of 2026, AI-related investment continued to support economic growth, but employment growth remained weak, with notable hiring only in non-cyclical industries such as construction. This reveals a disconnect between the knowledge economy and the labor market—productivity gains have not translated into broad-based employment and may instead widen the income gap between high-skilled and low-skilled workers.

3. The advanced manufacturing cluster in the South has entered an upward cycle

South Carolina is predicted to be one of the fastest-growing states in the region in 2026, benefiting from strong population growth and large-scale investment in advanced manufacturing, aerospace, and the automotive industry. North Carolina also continues to lead thanks to its diversified industrial structure. These states offer lower corporate taxes, more flexible land policies, and cheaper labor, attracting manufacturers from the Northeast and abroad. This "move south" is not only cost-driven but also part of supply chain restructuring—companies are positioning production capacity closer to southeastern ports and rapidly growing population centers.

4. Labor supply bottlenecks have become the biggest constraint

Almost all regions face the challenge of weak labor force growth. The working-age population in New England is shrinking due to aging and out-migration; Massachusetts' labor force participation rate fell 1.6% year-over-year; Vermont's participation rate dropped one percentage point in six months. Even in states with very low unemployment, labor shortages are forcing companies to either limit expansion or accelerate automation investment. This will become an important variable in U.S. manufacturing investment over the coming years.### 5. Dual Divergence in Federal Policy and Private Investment

Federal research funding cuts have hit academic and scientific institutions in New England, but defense contracts have compensated Connecticut. The Upper South Atlantic region has improved as the impact of federal spending cuts gradually fades. Meanwhile, private investment—especially in AI and data centers—is concentrating in the Mid-Atlantic and knowledge-economy-dense areas. Policy uncertainty (trade frictions, energy regulation) has dampened corporate investment willingness in the short term, but long-term strategic projects (such as defense, semiconductors, and batteries) are still advancing.

Industry Impact Analysis

Benefiting Industries

• Defense and Aerospace: Submarines, missiles, spacecraft, and their supply chains will benefit from long-term contracts, driving industries such as steel, electronics, and precision machinery.
• Artificial Intelligence and Data Centers: Tech hubs in the Mid-Atlantic and Northeast will attract more computing infrastructure investment, while also boosting supporting industries such as power and cooling equipment.
• Advanced Manufacturing: Automobile, aerospace, and biotechnology plants in states like South Carolina and North Carolina will continue to expand, forming industrial cluster effects.

Industries Under Pressure

• Sectors Dependent on Federal Research Funding: Universities, independent research institutions, and laboratories in New England face budget contraction.
• Leisure Tourism and Seasonal Real Estate: Maine and Vermont are experiencing job losses due to declining tourist numbers and federal layoffs.
• Traditional Commodity Manufacturing: Non-defense manufacturers oriented toward exports may continue to face pressure amid trade uncertainty and high energy costs.

New Pattern of Regional Competition

The center of gravity of the U.S. economy is undergoing a subtle but clear shift. Although the Northeast has lost some traditional manufacturing, it has maintained its high-value-added position through defense, AI, and financial services. Southern states, leveraging population growth and manufacturing investment, have become new production centers. This "dual-engine" model may persist for the next five years: the Northeast provides innovation and capital, while the South provides production capacity and logistics.

Notably, the Mid-Atlantic region (New York, New Jersey) grew by 2.0% due to AI investment, showing that the integration of finance and technology remains dynamic. Meanwhile, North Carolina in the Upper South Atlantic has become a bridge connecting the Northeast's knowledge economy with the South's manufacturing corridor.

Outlook for U.S. Industrial Trends Over the Next 3-5 Years 1. The defense industrial chain will continue to expand: Geopolitical tensions will drive the United States to increase investment in warships, missiles, and cybersecurity, with beneficiary states potentially expanding from Connecticut to Virginia, Alabama, and elsewhere. 2. AI infrastructure investment will reshape the energy landscape: Large-scale data center construction will stimulate demand for electricity, driving investment in natural gas, nuclear power, and grid upgrades, thereby affecting industrial costs. 3. Southern manufacturing clusters will form a self-reinforcing cycle: Population inflows, infrastructure improvements, and supply chain localization will attract more suppliers, making the Southeast the United States' new "Manufacturing Belt." 4. Automation will become key to addressing labor shortages: Companies will deploy more robots in welding, assembly, logistics, and other fields to raise per-capita output, but this may reduce low-skilled jobs and widen the skills gap. 5. Policy uncertainty remains the biggest risk: Repeated shifts in tariffs, energy policy, and the federal budget will lead companies to delay capital expenditures, but projects of strategic importance (defense, semiconductors) will continue to receive bipartisan support.

Conclusion

TD's state-level forecasts are not just a set of economic data, but also a microcosm of the structural transformation of the U.S. industrial system. Defense orders, AI investment, and the rise of Southern manufacturing together constitute a new growth logic. For businesses and investors, understanding this regional divergence is more meaningful than focusing on national averages. Over the next five years, countries and regions that can balance defense positioning, technological upgrades, and labor policy will seize the initiative in the next round of industrial competition.