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Should Cities Diversify? City Risk and Industrial Policy

Matthieu Bouvard, Adolfo de Motta and Sheridan Titman

No 24-1538, TSE Working Papers from Toulouse School of Economics (TSE)

Abstract: We explore the diversification of an urban economy where the labor specialization choices of its residents determine the city’s exposure to sectoral shocks. The presence of demand-driven externalities introduces the possibility of city-wide coordination failures. Residents, when making their specialization choices, do not account for the costs of these coordination failures, and as a result, the equilibrium level of diversification is ineÿcient. The optimal policies that address these externalities depend on the city’s economic condition, with prosperous urban economies deriving a greater benefit from fostering diversification. Thus, the paper rationalizes the widespread industrial policies that in some cases promote diversifying, while in others, specializing a city’s economy.

Keywords: City diversification; industrial policy, city risk; coordination failures (search for similar items in EconPapers)
Date: 2024-05
New Economics Papers: this item is included in nep-ure
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