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The Death and Life of Great British Cities / Stephan Heblich, Dávid Krisztián Nagy, Alex Trew, Yanos Zylberberg.
- Format:
- Book
- Author/Creator:
- Heblich, Stephan.
- Series:
- Working Paper Series (National Bureau of Economic Research) no. w34029.
- NBER working paper series no. w34029
- Language:
- English
- Physical Description:
- 1 online resource: illustrations (black and white);
- Place of Publication:
- Cambridge, Mass. National Bureau of Economic Research 2025.
- Summary:
- Does industrial concentration shape the life and death of cities? Using newly constructed data that identify and track English and Welsh cities from the early nineteenth century to the present, we estimate the causal effects of industrial concentration and city size on urban dynamics. We show that greater industrial concentration reduces long-run productivity, conditional on industry-specific trends, consistent with the presence of cross-industry (Jacobs) externalities. We embed these dynamic city-level externalities in a quantitative multi-sector spatial model to evaluate their aggregate and distributional implications. Shutting down Jacobs externalities would reduce today's North-South productivity divide by over 40%. The model also reveals a dynamic trade-off in the design of spatial clusters: patient policymakers favor diversification, whereas those prioritizing short-run gains favor concentration.
- Notes:
- July 2025.
- Print version record
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