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As we have discussed repeatedly on this blog (e.g. “Middle-aged White Guys“), one of the most puzzling issues in analyzing Wikipedia is its continuous decline in active editors since 2007, shortly after a period of exponential growth:

The number of active editors (>=5 edits/month) in English language Wikipedia (Halfaker et al. 2013)

Active editors (>=5 edits/month) in English language Wikipedia (Halfaker et al. 2013)

Aaron Halfaker, together with R. Stuart Geiger, Jonathan Morgan and John Riedl, has now published results of their research efforts to understand the reasons behind this editor decline in American Behavioral Scientist under the title “The Rise and Decline of an Open Collaboration Community: How Wikipedia’s reaction to sudden popularity is causing its decline” (see Preprint PDF).

One of Halfaker et al.’s core findings is that, while the proportion of desirable newcomers entering Wikipedia has not changed since 2006, the proportion of them being reverted in their first session has increased (“good_ faith & golden” refers to sub-groups of desirable newcomers): Read the rest of this entry »

The Book

Governance across borders: transnational fields and transversal themes. Leonhard Dobusch, Philip Mader and Sigrid Quack (eds.), 2013, epubli publishers.
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