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Nursery Cities: Urban Diversity, Process Innovation and the Life-Cycle of Products
Gilles Duranton,Diego Puga +1 more
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In this paper, a simple model of process innovation is proposed, where firms learn about their ideal production process by making prototypes and switch to mass-production and relocate to specialised cities with lower costs.Abstract:
A simple model of process innovation is proposed, where firms learn about their ideal production process by making prototypes. We build around this a dynamic general equilibrium model, and derive conditions under which diversified and specialised cities coexist. New products are developed in diversified cities, trying processes borrowed from different activities. On finding their ideal process, firms switch to mass-production and relocate to specialised cities with lower costs. When in equilibrium, this configuration welfare-dominates those with only diversified or only specialised cities. We find strong evidence of this relocation pattern in establishment relocations across French employment areas 1993u1996.read more
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Une théorie géographique pour la loi de zipf
TL;DR: In this article, the authors use empirical studies throughout the world in order to build a geographical theory on urban systems'evolution, and use a comparative method to examine cities dynamics.
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City Size Distributions as a Consequence of the Growth Process
Gilles Duranton,Gilles Duranton +1 more
TL;DR: In this article, the authors proposed a quality-ladder model of growth in an urban framework, which embeds the Grossman and Helpman (1991) model into the qualityladder (QL) model.
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Agglomeration Economies and Productivity: A Structural Estimation Approach Using Commercial Rents
TL;DR: In this article, the heterogeneity in firms' productivity regarding agglomeration economies is analyzed using a hedonic price approach, where a production function that allows for input factor substitution is given.
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The Logic of Agglomeration
Gilles Duranton,William R. Kerr +1 more
TL;DR: In this article, the authors discuss frontier topics in economic geography as they relate to firms and agglomeration economies, focusing on areas where empirical research is scarce but possible, and discuss the vast scope for enhancements of our picture of aggleration with the new data that are emerging.
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Agglomerative Forces and Cluster Shapes
TL;DR: In this article, the authors model spatial clusters of similar firms, highlighting how agglomerative forces lead to localized, individual connections among firms, while interaction costs generate a defined distance over which attraction forces operate.
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Book
Principles of Economics
TL;DR: In this article, the authors present a survey of the general relations of demand, supply, and value in terms of land, labour, capital, and industrial organization, with an emphasis on the fertility of land.
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The Economy of Cities
TL;DR: In this article, the authors studied the economy of cities and the main social problems that humanity has and the greatest source of creativity, innovation and development opportunities to solve those problems, which is relevant for a number of reasons: first of all, because most of the planet's population is grouped in them.
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Growth in Cities
Edward L. Glaeser,Edward L. Glaeser,Edward L. Glaeser,Hedi Kallal,Jose A. Scheinkman,Jose A. Scheinkman,Jose A. Scheinkman,Andrei Shleifer,Andrei Shleifer +8 more
TL;DR: In this paper, the authors used a new data set on the growth of large industries in 170 U.S. cities between 1956 and 1987 and found that local competition and urban variety, but not regional specialization, encourage employment growth in industries.
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Innovation in cities: Science-based diversity, specialization and localized competition
TL;DR: In this article, the authors consider the effect of the composition of economic activity on innovation and test whether the specialization of economic activities within a narrow concentrated set of activities is more conducive to knowledge spillovers or if diversity, by bringing together complementary activities, better promotes innovation.
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Original Innovation, Learnt Innovation and Cities: Evidence from UK SMEs:
Neil Lee,Andrés Rodríguez-Pose +1 more