Research Article Sociological Methods & Research 1-56 Using Location Data ª The Author(s) 2020 Article reuse guidelines: sagepub.com/journals-permissions From Mobile Phones DOI: 10.1177/0049124120914926 to Study Participation journals.sagepub.com/home/smr in Mass Protests Assaf Rotman1 and Michael Shalev2 Abstract Automatically collected behavioral data on the location of users of mobile phones offer an unprecedented opportunity to measure mobilization in mass protests, while simultaneously expanding the range of researchable ques- tions. Location data not only improve estimation of the number and com- position of participants in large demonstrations. Thanks to high spatial and temporal resolution they also reveal when, where, and with whom different sociopolitical sectors join a protest campaign. This article compares the features and advantages of this type of data with other methods of measuring who participates in street protests. The steps in preparing a usable data set are explained with reference to a six-week campaign of mass mobilization in Israel in 2011. Findings based on the Israeli data set illustrate a wide range of potential applications, pertaining to both the determinants and consequences of protest participation. Limitations of mobile location data and the privacy issues it raises are also discussed. Keywords social movements, mobile location data, mass protests, Israel, big data 1 Tel Aviv University, Israel 2 The Hebrew University of Jerusalem, Israel Corresponding Author: Michael Shalev, The Hebrew University of Jerusalem, Mount Scopus, Jerusalem 91905, Israel. Email:
[email protected] 2 Sociological Methods & Research XX(X) On January 20, 2017, masses of well-wishers gathered at the National Mall in Washington DC to be present at Donald Trump’s inauguration.