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Using a small-scale descriptive network analysis approach, this study highlights the importance of stakeholder networks for identifying valuable stakeholders and the management of existing stakeholders in the context of mental health not-for-profit services. We extract network data from the social media brand pages of three health service organizations from the U.S., U.K., and Australia, to visually map networks of 579 social media brand pages (represented by nodes), connected by 5,600 edges. This network data is analyzed using a collection of popular graph analysis techniques to assess the differences in the way each of the service organizations manage stakeholder networks. We also compare node meta-information against basic topology measures to emphasize the importance of effectively managing relationships with stakeholders who have large external audiences. Implications and future research directions are also discussed.

We study the impact of electronic markets on small, boutique firms selling presence goods or services—goods or services that must be consumed at the selling firm’s location. These firms have recently begun to compete on electronic markets by selling goods and services through local daily deal sites, such as Groupon and LivingSocial. We extract publicly available activity and spatial information from Groupon, LivingSocial, Google Maps, and Flickr to construct a unique panel data set to study daily deals offered by restaurants and spa vendors in geographical clusters of concentration in 167 distinct cities. This data set allows us to examine the effect of location on the competition vendors face in electronic markets. We find that as vendors in a particular geographical cluster participate in electronic markets, local competition increases and other vendors in that cluster join the electronic market and deepen discounts in response. However, vendors in other clusters in the same city remain relatively unaffected. We further analyze vendor ratings from Yelp and other infomediaries, to show that lesser known and low-quality vendors utilize the advertising effect of electronic markets to increase their awareness among customers. We further test the moderating effect of horizontal and vertical differentiation among firms in geographical clusters on competition in electronic markets, using measures extracted from UrbanSpoon.com. We find that clusters having lower differentiation experience higher competitive effects of firms joining the electronic market. Our findings provide empirical validation of the analytical results in existing literature in an important and understudied context: competition among small businesses selling presence goods and services. Our results have implications for firms and electronic market platforms. The online appendix is available at https://doi.org/10.1287/isre.2017.0754 .