Which Future Growth Arenas Will Dominate the Global Economy by 2040?

Key Findings from the MGI 2026 Report

The 2026 edition of McKinsey Global Institute’s report "The race takes off in the next big arenas of competition" updates the 2024 study and defines 18 "future arenas" that are driving the fastest global growth and most intense competition. These arenas include AI software & services, cloud computing, semiconductors, electric vehicles, digital advertising, shared autonomous vehicles, space, robotics, and more.

Since 2022, the total market value of these 18 arenas has grown by roughly $180 trillion, with a compound annual growth rate (CAGR) of 29%—about four times faster than other sectors. Revenue has risen by $1.4 trillion at an 11% CAGR, while capital and R&D spending have increased at a 14% CAGR, outpacing other industries by 4%.

Five Thematic Clusters

AI foundation : Semiconductors, cloud computing, AI software & services. Since 2022, this cluster added $500 billion in revenue and $11 trillion in market cap, making it the fastest‑growing group and preparing infrastructure for massive AI deployment.

Digitization : E‑commerce, digital advertising, streaming video, video games, cybersecurity. These sectors continue to capture the attention economy, especially in emerging markets.

Electrification : Electric vehicles, batteries, nuclear fission. Demand for EVs and battery storage remains strong, driving steady growth.

Hard tech : Robotics, shared autonomous vehicles, future air mobility, space, modular construction. Physical‑world applications are moving from concept to scale.

New bio‑frontiers : Non‑medical biotech and weight‑loss drugs. Weight‑loss medications now appear in 6 % of U.S. prescriptions, accelerating product‑line turnover.

Eight arenas—AI software & services, shared autonomous vehicles, cloud computing, electric vehicles, digital advertising, cybersecurity, semiconductors, and space—are projected to grow at near‑maximum rates through 2040, potentially reaching $29‑48 trillion in combined revenue.

Rise of "Omniscalers" and Cross‑Arena Competition

The report introduces the concept of "omniscalers": nine cash‑rich giants operating across multiple arenas, including Amazon, Tesla + SpaceX, Alibaba, Alphabet, Apple, Huawei, Meta, Microsoft, and Samsung. By 2025, these firms will generate $700 billion in operating cash flow and invest over $800 billion in R&D and capital expenditures, with some covering all nine arenas.

Their advantage lies in "compound capabilities"—reusable infrastructure, data network effects, high risk tolerance, and top‑tier talent attraction—allowing average arena revenue of about $200 billion per omniscale, far surpassing typical competitors.

Geographic Landscape

U.S. and Chinese (Greater China) companies together account for roughly 90 % of the market value across the arenas. U.S. firms lead in market cap for 14 arenas and revenue for 10, while Chinese firms are rapidly catching up, especially in electrification, leveraging scale, vertical integration, and manufacturing strength. Japan and South Korea show gains in industrial and consumer electronics, whereas Europe and other regions remain more cautious.

Implications for Decision‑Makers

Even organizations not directly in these fast‑growing arenas cannot remain insulated; demand, supply chains, and production systems are being reshaped. CEOs and policymakers must consider both offensive and defensive strategies: capturing new value pools, ensuring technology sovereignty, and building resilient supply chains.

The report underscores that the "creation formula"—technology and business‑model leaps, expanding investment races, and scalable markets—remains valid, and 2026 is a critical window to act.