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PRODID:-//AMSE//Event Calendar//FR
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BEGIN:VEVENT
UID:event-10052@amse-aixmarseille.fr
DTSTAMP:20260417T074602Z
CREATED:20260417T074602Z
LAST-MODIFIED:20260417T074602Z
STATUS:CONFIRMED
SEQUENCE:0
SUMMARY:Eco-lunch - Federico Trionfetti\, Priyam Verma
DTSTART:20230525T103000Z
DTEND:20230525T113000Z
DESCRIPTION:According to the literature we should expect the city size dis
 tribution to either conform to the Zipf's law or to log-normality. We check
  the city size distribution for thirty-one European countries and for two U
 .S. censuses and find very scant evidence of adherence to Zipf's law (even 
 for the upper-tail) or to log-normality for all cities. Exogenous location
  characteristics may determine the city size distribution. But even measur
 ing them is a daunting task. Facing this situation we turn to a natural "l
 ab". This lab is made of a unique data set that contains the universe of c
 ity size and location in the region of Bukhara in the 9th century A.D. The
  morphological homogeneity of the region approximates very well the absence
  of exogenous characteristics. Cities have developed for twelve centuries (
 from 3 BC to 9 AD) without sizeable perturbation and in a situation of rela
 tive isolation from the rest of the world.  The technology was constant ov
 er these centuries and homogeneous across the entire area\; which allows us
  to exclude stochastic growth.  We show that a simple model of location ch
 oice à la McFadden explains extremely well the size distribution of citie
 s. We also shows that the transport technology determined the agglomeration
  of urban settlements. Lastly\, we find evidence of persistence of populati
 on density from the 9the century to present.\\n\\nContact: Nathalie Ferriè
 re : nathalie.ferriere[at]sciencespo-aix.frFederico Trionfetti : federico
 .trionfetti[at]univ-amu.fr\n\nPlus d'informations: https://amse-aixmarseill
 e.fr/fr/evenements/federico-trionfetti-priyam-verma
LOCATION:MEGA - Salle Carine Nourry\, 424\, Chemin du Viaduc\, 13080 Aix-en
 -Provence
URL;VALUE=URI:https://amse-aixmarseille.fr/fr/evenements/federico-trionfetti-priyam-verma
CONTACT:Nathalie Ferrière :&nbsp\;nathalie.ferriere[at]sciencespo-aix.frFe
 derico Trionfetti :&nbsp\;federico.trionfetti[at]univ-amu.fr
TRANSP:OPAQUE
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