Modeling relational events: a case study on an open source software development project

Key current questions in organizational research refer to understanding the dynamics of social networks. While recent literature has provided important insights into these issues, there is a general recognition that a closer look at the micro-level foundations of ties and networks is required. Fine grained data about temporal sequences of actions between actors, or relational events, are currently widely available. However, for lack of suitable statistical models the potential of sequences of relational events is rarely exploited, as these data are usually aggregated over time as proxies for stable relations between actors. In this paper, we introduce a newly developed relational event model that takes advantage of the information contained in sequences of relational events. We provide an empirical example in the context of open source software development, where relational events are actions taken by contributors to solve software problems. We specify and estimate a model with the aim to address substantive questions regarding the continued engagement of contributors in voluntary projects. Our results provide insights into the social mechanisms underlying contributors’ work on routine and maintenance actions that cannot be considered as sources of status and recognition. We interpret these results in the context of the current debate on the production of open source software and provide guidance on the application of the model.