- The Treated x After coefficient indicates that uploading Wikipedia articles containing new scientific information shifts scientific literature that follows it by 0.033pp at a 1% significance. 
- This causation extends beyond high impact Wikipedia articles and applies to almost all of the new treatment articles uploaded because the effects of new information on the scientific community was found to be immediate and statistically significant

University of Michigan - Ann Arbor

- After being uploaded, each chemistry article had an average of 4,400 views per month and in 2 years, treatment articles together had more than 2 million views 
- Control (green) shows rise in low similarity articles; fall in high similarity articles
- Treatment (blue) shows fall in low similarity articles; rise in high similarity articles 
- Significant coefficients indicate that one new Wikipedia article leads to a positive shift in scientific literature published 
- Concluded that introduction of new chemistry articles in Wikipedia caused an increase in scientific literature on those topics (scientists reading the new Wikipedia articles means impact of treatment articles on scientific literature is strong enough to imply causation)

Science is shaped by wikipedia causation

Thompson, N., & Hanley, D. (2018). Science is shaped by wikipedia: Evidence from a randomized control trial. https://papers.ssrn.com/sol3/papers.cfm?abstract_id=3039505. 

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