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We also examined shifts across multiple communication media (email, instant message, video call, and calendaring software) within a single global organization and compared them with communications shifts that were driven by changes in formal organizational structure. We found that in 2020, organizations around the world became more siloed than in 2019, evidenced by increased modularity. This shift was concurrent with decreased stability within silos. Collectively, our analyses indicate that following the onset of COVID-19, employees\u2019 communications began to shift more dynamically between subcommunities (teams, workgroups, or functional areas). At the same time, once in a subcommunity, they limited their communication to other members of that community. We term these network changes dynamic silos. We provide initial insights into the meaning and implications of dynamic silos for the future of work. <\/jats:p><jats:p> This paper was accepted by Lamar Pierce, organizations. <\/jats:p><jats:p> Supplemental Material: The data files are available at https:\/\/doi.org\/10.1287\/mnsc.2022.02797 . <\/jats:p>","DOI":"10.1287\/mnsc.2022.02797","type":"journal-article","created":{"date-parts":[[2024,7,30]],"date-time":"2024-07-30T15:05:51Z","timestamp":1722351951000},"page":"3428-3448","source":"Crossref","is-referenced-by-count":1,"title":["Dynamic Silos: Increased Modularity and Decreased Stability in Intraorganizational Communication Networks During the COVID-19 Pandemic"],"prefix":"10.1287","volume":"71","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2933-121X","authenticated-orcid":false,"given":"Tiona","family":"Zuzul","sequence":"first","affiliation":[{"name":"Harvard Business School, Harvard University, Boston, Massachusetts 02163"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9444-7660","authenticated-orcid":false,"given":"Emily","family":"Cox Pahnke","sequence":"additional","affiliation":[{"name":"Foster School of Business, University of Washington, Seattle, Washington 98195"}]},{"given":"Jonathan","family":"Larson","sequence":"additional","affiliation":[{"name":"Microsoft Research, Microsoft, Redmond, Washington 98052"}]},{"given":"Patrick","family":"Bourke","sequence":"additional","affiliation":[{"name":"Microsoft Research, Microsoft, Redmond, Washington 98052"}]},{"given":"Nicholas","family":"Caurvina","sequence":"additional","affiliation":[{"name":"Microsoft Research, Microsoft, Redmond, Washington 98052"}]},{"given":"Neha","family":"Parikh Shah","sequence":"additional","affiliation":[{"name":"Microsoft Experiences, Microsoft, Redmond, Washington 98052"}]},{"given":"Fereshteh","family":"Amini","sequence":"additional","affiliation":[{"name":"Microsoft Experiences, Microsoft, Redmond, Washington 98052"}]},{"given":"Jeffrey","family":"Weston","sequence":"additional","affiliation":[{"name":"Microsoft Experiences, Microsoft, Redmond, Washington 98052"}]},{"given":"Youngser","family":"Park","sequence":"additional","affiliation":[{"name":"Center for Imaging Science, Johns Hopkins University, Baltimore, Maryland 21218"}]},{"given":"Joshua","family":"Vogelstein","sequence":"additional","affiliation":[{"name":"Department of Biomedical Engineering, Johns Hopkins University, Baltimore, Maryland 21218"}]},{"given":"Christopher","family":"White","sequence":"additional","affiliation":[{"name":"Microsoft Research, Microsoft, Redmond, Washington 98052"}]},{"given":"Carey E.","family":"Priebe","sequence":"additional","affiliation":[{"name":"Department of Applied Mathematics and Statistics, Johns Hopkins University, Baltimore, Maryland 21218"}]}],"member":"109","reference":[{"key":"B1","doi-asserted-by":"publisher","DOI":"10.1016\/0048-7333(85)90021-6"},{"key":"B2","doi-asserted-by":"publisher","DOI":"10.1177\/0001839219832813"},{"key":"B3","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0024195"},{"key":"B5","doi-asserted-by":"publisher","DOI":"10.1126\/science.286.5439.509"},{"key":"B6","doi-asserted-by":"publisher","DOI":"10.2307\/30040711"},{"key":"B7","doi-asserted-by":"publisher","DOI":"10.1073\/pnas.0907096106"},{"volume-title":"The Dynamics of Bureaucracy: A Study of Interpersonal Relations in Two Government Agencies","year":"1963","author":"Blau PM","key":"B8"},{"key":"B9","doi-asserted-by":"publisher","DOI":"10.1111\/jeea.12094"},{"key":"B10","doi-asserted-by":"publisher","DOI":"10.1038\/s41586-022-04643-y"},{"issue":"2","key":"B11","first-page":"209","volume-title":"Classics Organ. 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