eprintid: 35217 rev_number: 17 eprint_status: archive userid: 3114 dir: disk0/00/03/52/17 datestamp: 2024-08-01 13:11:57 lastmod: 2024-08-01 18:14:00 status_changed: 2024-08-01 13:11:57 type: workingPaper metadata_visibility: show creators_name: Hornbeck, Richard creators_name: Michaels, Guy creators_name: Rauch, Ferdinand title: Identifying Agglomeration Shadows: Long-run Evidence from Ancient Ports subjects: ddc-330 divisions: i-181000 keywords: agglomeration shadow, urban hierarchy, new economic geography abstract: We examine "agglomeration shadows" that emerge around large cities, which discourage some economic activities in nearby areas. Identifying agglomeration shadows is complicated, however, by endogenous city formation and "wave interference" that we show in simulations. We use the locations of ancient ports near the Mediterranean, which seeded modern cities, to estimate agglomeration shadows cast on nearby areas. We find that empirically, as in the simulations, detectable agglomeration shadows emerge for large cities around ancient ports. These patterns extend to modern city locations more generally, and illustrate how encouraging growth in particular places can discourage growth of nearby areas. date: 2024-06 publisher: Universität id_scheme: DOI id_number: 10.11588/heidok.00035217 schriftenreihe_cluster_id: sr-3 schriftenreihe_order: 0752 own_urn: urn:nbn:de:bsz:16-heidok-352179 language: eng bibsort: HORNBECKRIIDENTIFYIN20240625 full_text_status: public series: AWI Discussion Paper Series volume: 0752 place_of_pub: Heidelberg pages: 68 citation: Hornbeck, Richard ; Michaels, Guy ; Rauch, Ferdinand (2024) Identifying Agglomeration Shadows: Long-run Evidence from Ancient Ports. [Working paper] document_url: https://archiv.ub.uni-heidelberg.de/volltextserver/35217/7/Hornbeck_Michaels_Rauch_dp752_2024.pdf