Les réseaux sociaux d'aujourd'hui. Un monde décidément bien petit
In a famous experiment, Stanley Milgram showed in 1969 that, on the average, 6 links (therefore passing through 5 intermediates) were sufficient to connect two strangers in the United States. These six degrees of separation have been observed by other studies but also carrying on small samples. The advent of social networks on the Internet has recently allowed checks on a massive scale. Studies of the Microsoft instant messaging, Twitter or Facebook confirmed and even amplified the small world hypothesis. Thus, by analyzing the 69 billion relationships between the 721 million people having logged into Facebook in May 2011, it appears that the average distance (or number of degrees) between two randomly selected users on the planet is 4.7. Various explanations of the small world are discussed in this article (weak ties between clusters, the presence of hubs in a scale-free structure) and appear in the end rather complementary. JEL classification : Z1, Z19
If you experience problems downloading a file, check if you have the proper application to view it first. In case of further problems read the IDEAS help page. Note that these files are not on the IDEAS site. Please be patient as the files may be large.
As the access to this document is restricted, you may want to look for a different version under "Related research" (further below) or search for a different version of it.
When requesting a correction, please mention this item's handle: RePEc:cai:reofsp:reof_126_0155. See general information about how to correct material in RePEc.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Jean-Baptiste de Vathaire)
If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.
If references are entirely missing, you can add them using this form.
If the full references list an item that is present in RePEc, but the system did not link to it, you can help with this form.
If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your profile, as there may be some citations waiting for confirmation.
Please note that corrections may take a couple of weeks to filter through the various RePEc services.