"synergizing with Shenzhen and other Greater Bay Area cities, the project aims to expand Hong Kong's economic hinterland" [economic hinterland]
The explicit framing of the Northern Metropolis as expanding Hong Kong's 'economic hinterland' via Shenzhen integration directly names the mechanism by which a border-zone development deepens structural economic absorption into the mainland.
Reasoning from this article
The article treats the Northern Metropolis not merely as a housing project but as a deliberate spatial strategy to dissolve the economic boundary between Hong Kong and the Pearl River Delta. The pattern — using border-adjacent mega-development to create facts on the ground that precede formal institutional integration — is a recurring tool in how central governments gradually harmonize semi-autonomous territories. The university town + industrial park + R&D cluster model further embeds talent and capital flows that are difficult to reverse.