This paper discusses the issue of possible reporting bias in media based
violent event data and its relation to the role of communication technology
in fostering collective action. We expand the work of Weidmann (2015),
presenting several sensitivity analyses to determine the degree to which
reporting bias may confound the relationship between communication
technology and violence in a recent study that relies on UCDP-GED event
data for Africa (Pierskalla & Hollenbach 2013). We find no strong evidence
that suggests results on the positive relationship between communication
technology and collective action in the study by Pierskalla and Hollenbach
(2013) is wholly an artifact of reporting bias