For centuries the cities have been the centers of trade, culture, and progress. In the 21st century, megacities have become economic engines, attracting investment, innovation, and labor. However, with the rise of technology, digital services, and remote work, a question arises: are megacities still essential for sustainable economic growth, or is the world shifting toward a decentralized model?
The National Bureau of Economic Research (NBER) study, “Are Big Cities Important for Economic Growth?” (Matthew Turner and David N. Weil, 2025), examines how cities of different sizes impact productivity, innovation, and quality of life. In this article, we will explore the following:
• Why have megacities become key economic hubs?
• Can they be replaced by a network of smaller cities and remote work?
• What are the risks and opportunities for megacities in the future?
• Which urban model is most beneficial for economic development?
Why Are Megacities Still Important?
1. Concentration of Capital and Investment
Large cities have traditionally been the main hubs for financial centers, multinational corporations, and venture capital funds. Cities like New York, London, and Tokyo control a significant share of global capital flows.
2. The Agglomeration Effect
According to the NBER study, a 10% increase in city population leads to a 0.8-1.3% rise in productivity. This happens because the concentration of talent and ideas accelerates innovation and improves business efficiency.
3. Access to Skilled Workforce
Major universities, research centers, and startup incubators are located in megacities. This ecosystem facilitates the rapid development and adoption of new technologies.
4. Infrastructure Advantages
Developed transport, education, and digital infrastructure make megacities strong economic hubs. Companies can efficiently interact with clients, partners, and research institutions.
Can Megacities Be Replaced?
While megacities have many advantages, their future is being questioned due to several challenges.
1. Rising Cost of Living
Housing, transportation, and taxes make life in megacities increasingly expensive, reducing their appeal for young professionals and small businesses.
2. Infrastructure Overload
Traffic congestion, pollution, and limited green spaces make life in large cities more difficult and lower overall quality of life.
3. The Rise of the Digital Economy
Remote work, e-commerce, and cloud technologies allow businesses to operate without being tied to a physical location. Between 2020 and 2023 many companies transitioned to remote work, proving that efficiency can be maintained outside of major urban centers.
4. Decentralization Trends
Some countries are actively promoting economic decentralization. South Korea is investing in technology clusters outside of Seoul, while Germany follows a “polycentric” development model, where economic activity is distributed across multiple cities.
What Is the Future of Cities?
1. The Rise of Hybrid Models
Cities will integrate digital infrastructure with physical office spaces. Companies will use offices for strategic meetings, while daily work will be done remotely.
2. The Development of Smart Cities
Automated transport systems, eco-friendly technologies, AI-driven infrastructure, and digital services will enhance the quality of life in megacities.
3. Growth of Secondary Cities
Smaller and mid-sized cities will receive more infrastructure and technological investments, reducing pressure on megacities and ensuring balanced economic growth.
Megacities remain central economic hubs, but their role is evolving. The NBER study shows that clustering people and businesses in one place drives productivity and innovation, but with digital advancements, this advantage is diminishing.
The future lies in a hybrid model, where megacities act as strategic management centers, while smaller cities and remote work become integral parts of the global economy. Countries like Kazakhstan and others can benefit by investing in both major cities and regional development.
Prepared by: Alen Serik, expert of the EconomyKZ.org portal
