Issue capital of personal networks: the social driver of public engagement

Members of the public are no longer just passive recipients of organizational messaging. They are increasingly active participants who seek to influence both organizations and the issues they care about. For example, a person interested in climate change may share content with peers, sign a petition, or donate to an advocacy group. A key question is what drives people to take such action. Existing public relations research has largely focused on how individual attitudes and motivations shape public behavior. However, it often overlooks how a person’s social environment can influence their willingness to engage. This paper by Qu (2025) addresses that gap by introducing the concept of issue capital to explain how social connections help drive public involvement.Issue capital refers to the communicative resources individuals draw from their personal networks when engaging with social issues. It builds on the broader concept of social capital, which emphasizes how social relationships provide access to useful resources such as information, support, and influence. In this context, issue capital highlights how conversations within one’s network can shape understanding of an issue and encourage action. Rather than seeing engagement as purely an individual decision, this perspective shows how social connections can play a key role in motivating public involvement. In this study, issue capital is assessed through five attributes of a person’s discussion network: network size, network heterogeneity, discussion frequency, alters' issue expertise, and network density.Network size refers to the number of people with whom an individual regularly discusses a social issue. Larger networks are likely to provide more exposure to new information and opinions. These interpersonal exchanges can reinforce one’s commitment to an issue and foster a sense of shared concern. As a result, individuals with bigger networks may be more likely to engage in “communicative actions”, such as discussing or sharing issue-related content, as well as “substantive actions”, such as contributing time or money to advocacy efforts. The study proposes that a larger issue discussion network is positively associated with both forms of public engagement.Network heterogeneity refers to the diversity of people within an individual’s issue discussion network. This includes variation in age, gender, occupation, or social background. Similar to network size, diverse networks are likely to expose individuals to a broader range of perspectives and ideas. This variety can deepen understanding of an issue and encourage reflection. Engaging with different viewpoints may also challenge assumptions and strengthen motivation to act. The study suggests that individuals with more heterogeneous discussion networks are more likely to participate in both communicative and substantive public actions.Issue discussion frequency refers to how often an individual talks about a particular issue with others in their personal network. Regular conversations can keep the issue top of mind and reinforce its importance. The more frequently someone engages in these discussions, the more likely they are to absorb new information, strengthen their views, and feel socially supported in taking action. Frequent discussions can also create a sense that taking action is expected or encouraged by others. The study proposes that individuals who discuss an issue more often are more likely to participate in both communicative and substantive forms of public action.Alters’ issue expertise refers to how knowledgeable a person’s discussion partners are about a given issue. Talking with informed others can help individuals understand the issue more clearly and see it as more important. These conversations may offer useful facts, clarify complex points, and build confidence in speaking up or taking action. When people view their discussion partners as credible, they may also see the issue itself as more legitimate or urgent. The study finds that individuals with more knowledgeable discussion partners are more likely to engage in both communicative and substantive public actions.Network density refers to how closely connected an individual’s discussion partners are with each other. In a dense network, where many people know and talk to one another, there may be stronger social pressure to align with shared norms or values. This can reinforce one’s commitment to an issue and create a sense of collective responsibility. Dense networks may also offer emotional support that helps sustain engagement over time. The study suggests that individuals embedded in more tightly connected networks are more likely to participate in both communicative and substantive public actions.To test the hypotheses about issue capital and public engagement, the author conducted an online survey with a nationally representative sample of 1,146 US adults. Some of the key findings and implications are now discussed.The study finds that network size, discussion frequency, and alters’ issue expertise are consistently linked to higher public engagement. People who talk often with many well-informed others are more likely to take part in both communicative and substantive actions. These include not only sharing or consuming content but also donating, signing petitions, or volunteering.The other two dimensions, network heterogeneity and network density, showed weaker effects. For instance, network heterogeneity is only linked to donations. Meanwhile, network density is related to content contribution and attending educational programs. This suggests that while having diverse or closely connected networks can matter in some cases, they do not consistently lead to greater public action.Based on their findings, the authors offer the following implications for organizations seeking to engage or mobilize publics more effectively:This review is based on “Communicative resources in personal networks: the relationship between publics’ issue capital and issue actions” by Yan Qu, published in the Journal of Communication Management.