Figure 1From: Cities of a feather flock together: a study on the synchronization of communication between Italian cities(a) The 76 selected cities, their geographical position in Italy, and their size according to the OECD categorization. (b) Average volume of outgoing calls as a percentage by hour for the cities in the North, Center and South of Italy. We can see that during weekdays the drops in percentage of calls for South of Italy cities are delayed compared to the behavior of the ones from the North and the CenterBack to article page