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Creator: Rossi-Hansberg, Esteban and Wright, Mark L. J. Series: Staff report (Federal Reserve Bank of Minneapolis. Research Department) Number: 382 Abstract:
Why do growth and net exit rates of establishments decline with size? What determines the size distribution of establishments? This paper presents a theory of establishment dynamics that simultaneously rationalizes the basic facts on economy-wide establishment growth, net exit, and size distributions. The theory emphasizes the accumulation of industry-specific human capital in response to industry-specific productivity shocks. It predicts that establishment growth and net exit rates should decline faster with size and that the establishment size distribution should have thinner tails in sectors that use human capital less intensively or physical capital more intensively. In line with the theory, the data show substantial sectoral heterogeneity in U.S. establishment size dynamics and distributions, which is well explained by variation in physical capital intensity.
Palavra-chave: Establishment Dynamics, Zip's Law, Size Distribution of Establishments, Scale Effects, and Gibrat's Law Sujeito: L11 - Production, Pricing, and Market Structure; Size Distribution of Firms, L16 - Industrial Organization and Macroeconomics: Industrial Structure and Structural Change; Industrial Price Indices, and L25 - Firm Performance: Size, Diversification, and Scope
Creator: Rossi-Hansberg, Esteban and Wright, Mark L. J. Series: Staff report (Federal Reserve Bank of Minneapolis. Research Department) Number: 381 Abstract:
Most economic activity occurs in cities. This creates a tension between local increasing returns, implied by the existence of cities, and aggregate constant returns, implied by balanced growth. To address this tension, we develop a general equilibrium theory of economic growth in an urban environment. In our theory, variation in the urban structure through the growth, birth, and death of cities is the margin that eliminates local increasing returns to yield constant returns to scale in the aggregate. We show that, consistent with the data, the theory produces a city size distribution that is well approximated by Zipf’s Law, but that also displays the observed systematic under-representation of both very small and very large cities. Using our model, we show that the dispersion of city sizes is consistent with the dispersion of productivity shocks found in the data.
Palavra-chave: Balanced Growth, Gibrat's Law, Size Distribution of Cities, Economic Growth, Zip's Law, and Scale Effects Sujeito: E00 - Macroeconomics and Monetary Economics: General, R00 - Urban, Rural, Regional, Real Estate, and Transportation Economics: General, and O40 - Economic Growth and Aggregate Productivity: General