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KDI 경제교육·정보센터

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최신자료
(All) Italian Cities’ Size Distribution
CEPR
2026.01.05
By revisiting well-established empirical regularities, this paper examines the distributional properties of city sizes in Italy over the period 2001-2024. Three main findings emerge. First, when considering the full population of approximately 7,900 municipalities, city sizes are well approximated by a lognormal distribution. Second, consistent with Gibrat’s law, city population growth rates appear to be independent of initial city size. Third, the upper tail of the distribution follows Zipf’s law, although the results are sensitive to the choice of truncation threshold. The implications of these findings are discussed in relation to urban dynamics and the organization of the Italian urban system.