This article introduces a dataset on the covert use of social media to influence politics by promoting propaganda, advocating controversial viewpoints, and spreading disinformation.  Influence efforts are defined as: (i) coordinated campaigns by a state, or the ruling party in an autocracy, to impact one or more specific aspects of politics at home or in another state, (ii) through media channels, including social media, by (iii) producing content designed to appear indigenous to the target state. Our data draw on more than 1000 media reports and 500 research articles/reports to identify IEs, track their progress, and classify their features. The data cover 78 foreign influence efforts (FIEs) and 25 domestic influence efforts (DIEs)---in which governments targeted their own citizens---against 51 different countries from 2011 through early-2021. The Influence Effort dataset measures covert information campaigns by state actors, facilitating research on contemporary statecraft. 

(Last updated February 3, 2022)

Associated files:

1. Codebook
2. ESOC Influence Effort Database V3 - database of 78 foreign influence efforts (FIEs) and 25 domestic influence efforts (DIEs)
3. Excluded Cases (41)
4. Annotated Research Bibliography - an annotated bibliography of 501 research articles on foreign influence efforts
5. News Article Bibliography - citations for all 1,094 news articles and reports we used to build the data
6. Replication Files