Urbanisation in emerging economies is entering a phase where traditional municipal-bound planning can no longer match the scale or complexity of economic activity. Cities today function as nodes within wider regional networks of labour, production and markets. The concept of City Economic Regions (CERs) reflects this evolving reality by shifting focus from isolated cities to interconnected regional systems. Instead of treating each city as an administrative island, CERs encourage policymakers to recognise the organic economic geographies where people live, commute, trade and innovate across multiple jurisdictions.
Historical Foundations in City Cluster Thinking
The idea of planning at a regional scale is not new. The Asian Development Bank (ADB) pioneered some of the earliest models of City Cluster Economic Development in South and Southeast Asia, demonstrating that economic activity grows fastest when cities operate as integrated clusters rather than standalone units. ADB’s work on economic corridors in the Greater Mekong Subregion, metropolitan region competitiveness studies in South Asia and integrated spatial strategies across developing regions offered a foundational insight: prosperity emerges not from enlarging a single city but from strengthening the entire economic ecosystem surrounding it. These early studies showed that seamless movement of labour, goods and services across city boundaries multiplies economic outputs more effectively than city-level interventions alone.
Why Regional Development Matters Today
City Economic Regions are emerging at a moment when economic networks have outgrown governance boundaries. Labour markets stretch across districts, supply chains span peri-urban belts, and industrial clusters are shifting from city centres to regional corridors. CERs acknowledge that infrastructure, land use, mobility, industry promotion and environmental management must align with functional regions rather than rigid municipal borders. By recognising regional flows, CERs help reduce duplication of infrastructure, optimise investments and enhance the competitiveness of smaller towns that often remain excluded from urban-centric planning. This approach directly builds on the lessons from ADB’s cluster work, where improved connectivity and integrated governance were repeatedly identified as catalysts for productivity and private investment.
Financing and Competitiveness in Regional Planning
One of the most significant shifts represented by CERs is the transition from entitlement-based funding to competitive, performance-oriented regional financing. Global experiences—from ADB’s cluster competitiveness frameworks to the European Union’s cohesion policy—demonstrate that challenge-based funding drives stronger planning, better coordination and greater accountability. CERs adopt this line of thinking by encouraging regions to articulate their economic identity, demonstrate planning capacity and present implementable development strategies. This shift enables better targeting of funds toward regions that can translate policy ambition into measurable outcomes, while also creating incentives for regional collaboration that historically has been weak.
Governance as the Core Enabler
However, the success of any regional framework ultimately depends on governance. ADB’s earlier city cluster programmes consistently highlighted the need for strong regional institutions, streamlined decision-making structures and elevated municipal capacities. CERs therefore require reforms that enable municipal bodies, metropolitan authorities and district administrations to work through common platforms. Without shared institutional mechanisms, regional visions risk being reduced to fragmented local actions. Modern CER governance calls for metropolitan councils, joint infrastructure planning boards, regional transport authorities and unified digital planning systems—tools that convert regional thinking into operational reality.
Building Integrated, Investible and Resilient Regions
When executed well, CERs offer a credible pathway to attract private capital into urban and regional infrastructure. Classically, private investment in cities has remained concentrated in sectors like transport and energy. A regional approach, however, allows investors to assess larger integrated markets, diversified industrial bases and stronger regional logistics networks, thereby improving the viability of projects in sectors such as water, waste, mobility systems, industrial infrastructure and digital networks. Moreover, CERs offer a scale at which climate resilience and environmental management can be handled effectively, since water systems, air quality, land use pressures and ecological risks rarely confine themselves to municipal boundaries.
Strategic Specialisation and Regional Identity
A defining feature of CERs is their ability to shape economic identity at a regional scale. ADB’s cluster studies showed that regional specialisation—in textiles, electronics, tourism, agribusiness, logistics or advanced manufacturing—improves competitiveness when supported by coordinated policies across multiple jurisdictions. CERs allow regions to develop such specialisation through integrated industrial strategies, shared skilling ecosystems, coordinated investment promotion and region-wide infrastructure planning. This helps cities and towns within a region transcend competition with each other and instead compete collectively in the global marketplace.
The Path from Concept to Implementation
The promise of CERs lies in execution. Countries worldwide have experimented with regional development models, and the common lesson is that spatial planning, governance reform, data systems and financing models must evolve simultaneously. High-quality regional data—including labour mobility analytics, economic density maps, carbon risk assessments and satellite-based land-use intelligence—becomes essential for informed decision-making. Similarly, blended finance, combining public investment, PPP models and outcome-based financing, becomes necessary to fund regional infrastructure at the required scale. Above all, local governments must be empowered with the capacities and autonomy needed for translating regional strategies into actionable plans.
The Future Belongs to Regions, Not Cities
City Economic Regions mark a significant turning point in the evolution of urban policy. By embracing the logic of clusters, corridors and regional competitiveness, CERs reimagine urbanisation as a distributed, interconnected and resilient process. Drawing from global experiences and ADB’s pioneering work, the CER approach underscores that the future of economic growth will be shaped not by individual cities but by the strength and coherence of the regions they anchor. If executed with institutional clarity, integrated planning and inclusive stakeholder participation, CERs have the potential to create new engines of prosperity across emerging economies and transform the landscape of urban development for decades to come.
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