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The purpose of this paper is to investigate how focal firms in supply networks manage weak and strong ties for exploration and exploitation innovation in mature industries. In doing so, the paper extends the understanding of how focal firms manage open innovation (OI).

The empirical base is a multiple case study conducted on three companies operating in mature industries in Europe.

Findings of this study reveal, analyze and explain a diverse set of OI practices in the supply networks of mature industries in which the focal firms integrate strong and weak supply ties to enhance innovation outcomes. This study provides a fine-grained view of the benefits of the additive and interactive effects of strong and weak ties in OI. More specifically, the analysis reveals an enhancing role of strong supply ties in exploration, which previously was associated solely with weak ties. Moreover, this study sheds light on the dominant and orchestrating roles of focal firms.

The findings provide insights to enhance OI practices beyond the limited role of the weak ties of the supply network and highlight the essential role of the strong supply ties in mature industries.

While previous studies have associated exploration with weak ties, findings of this study reveal that exploration-oriented activities in mature industries also extend to strong ties. In the strong ties of mature industries, this study finds there is not only the exploitation of existing knowledge but also the reconfiguration and innovation of products.

The strength of ties between individuals influences the speed and spread of crisis information dissemination (CID). By constructing networks of strong and weak ties, this paper aims to innovatively explore the impacts of strong and weak ties on the CID at the macro level.

To better understand the rules of CID in different kinds of social networks, this paper constructs a CID model based on the strength of ties in social networks and cellular automation, using simulations of CID speed and spread in an entire network, strong tie network and weak tie network generated by MATLAB.

As the article's major theoretical contribution, the results demonstrate that CID is more efficient in a network of weak ties than in a network of strong ties, and that the spread of CID has a positive correlation with the believability of the information disseminated and the dissemination tendency coefficient. Furthermore, the difference of dissemination speeds between strong and weak tie networks varies regularly with information believability and the dissemination tendency coefficient.

This study provides more effective public mechanisms for rapidly evaluating the believability of crisis information and responding to crises in real time. The findings also have some valuable implications for government agencies to improve the efficiency and effect of CID.

This study aims to investigate how the strength of ties (i.e. strong ties and weak ties) in megaproject networks influences project performance in terms of types of conflicts.

A questionnaire survey was undertaken with professionals in Chinese megaprojects and 445 valid responses were received. A conflict-based theoretical model was developed and tested with structural equation modeling.

The results indicated that task conflict had a constructive effect on project performance, whereas relationship conflict and process conflict had destructive effects. Both strong and weak ties positively affected project performance, and that weak ties exerted greater effects on performance. The introduction of conflicts significantly weakened the effect of strong ties on project performance. Strong ties indirectly affected project performance via task conflict and relationship conflict, whereas weak ties affected performance only through task conflict. Task conflict had a constructive effect on project performance, whereas relationship conflict and process conflict had destructive impact.

This study identified the positive effect of strength of ties on project performance as well as the constructive and destructive roles of conflicts. Furthermore, the findings provided evidence that strength of ties and conflicts were critical factors for project performance. While, there are still limitations. There are other attributes of megaproject networks, such as network nodes’ characteristics and network structure, which may influence conflicts and project performance. Future research would be conducted to explore the role of these variables. Meanwhile, because different types of conflicts may mutually transform under certain conditions, future research would also address this issue in megaprojects.

As for the management strategies, project stakeholders should know the existence of project networks, exactly assess their resource endowment, especially their external and internal relationship network. In accordance with changes of the project network, stakeholders should share knowledge and learn techniques about how to respond to relationship disturbances, thus reducing relationship conflict and process conflict. Furthermore, stakeholders should place an emphasis on fostering and reinforcing communication and trust, thus effectively resolving task conflict, ambiguity and uncertainty engendered from network ties in a megaproject network.

The main contribution of this study is threefold. First, this study will enrich the literature on strength of ties by accentuating the roles of conflicts in megaproject context. Second, this study contributes to the theoretical development of a conceptual model for explaining the interrelationships among strength of ties, conflicts and project performance. Third, this study will respond to the call “which dimension, i.e. strong ties or weak ties, is more influential” by exploring the direct and indirect effects of strength of ties on project performance.

This paper aims to examine the role of Facebook friends on the intention to join brand pages in this social network site (SNS). SNSs have grown in both popularity and use. They allow individuals to articulate their social networks by developing a list of other members on the site with whom they share a connection. These platforms also allow companies to create profiles to promote their brands. However, many firms have jumped into SNSs by creating a “brand page” without fully understanding how to spread it successfully.

Two experiments were developed. In the first one, the authors manipulated how the individual comes to know about brand pages. Participants discovered a brand page through a friend with whom they have either a strong tie or a weak tie. In the second experiment (2 × 2), the authors manipulated tie strength (strong vs weak) and the type of recommendation (active vs passive).

Results of the first study show that as the individual has more experience in Facebook (measured in this paper through satisfaction, past behavior of following brands and Facebook intensity), the effect of tie strength on the intention to join a brand page dilutes. The second study confirms Study 1 and shows that strong ties exert more influence than weak ties when the brand page is actively recommended by Facebook friends.

This paper shows that the influence of strong ties is particularly important for individuals with low levels of experience in Facebook. As experience in SNSs is expected to continue growing, managers should not forget the role of weak ties as a source of information for their networked friends. Strong ties only remain more influential than weak ties when the information about the brand page is received through an invitation.

This paper explores the interpersonal influences in Facebook, asserting that the influence of tie strength depends on the level of experience in the SNS, and on the way, information about the brand page is received.

This study aims to investigate the relationships between the different strengths of ties (strong ties and weak ties), types of trust and project performance in megaprojects.

A questionnaire survey was conducted with various experts and professionals involved in megaprojects, and 350 valid responses were received. Data was analyzed by means of structural equation modeling.

The results show that both strong ties and weak ties have positive impacts on trust in megaprojects, but weak ties have a more significant positive effect than do strong ties. Unexpectedly, the introduction of interorganizational trust significantly weakens the effect of the strength of ties on project performance. The indirect influence of the strength of ties on performance has different paths. Weak ties have an indirect effect via calculative trust and relational trust. However, in a strong ties network, inferior stakeholders lack the information necessary to complete a megaproject, and they believe that calculative trust will not promote project performance until the megaproject is successfully delivered. Thus, the effect of calculative trust on project performance is not significant.

These findings provide evidence in regard to strength of ties governance being a part of the effective strategy in improving megaprojects’ performance. It also demonstrates the mediating function of trust and advances the current understandings of the underlying mechanism of the strength of ties on project performance, thus providing implications for researchers and practitioners. However, this study has some limitations. For example, the strength of ties and trust between organizations are a dynamic process in megaprojects. This study does not conduct in-depth analysis of the evolution mechanism and investigate the different levels of trust at different stages of the megaproject. Future research can be guided by these directions.

The main contribution of this study is fourfold. First, this study enriches the literature on strength of ties by accentuating the roles of trust in megaproject context. Second, this study contributes to the theoretical development of a conceptual model for explaining the interrelationships among strength of ties, types of trust and project performance. Third, this study responds to the call “which dimension (i.e. strong ties or weak ties) is more influential” by exploring the direct and indirect effects of strength of ties on project performance. Finally, this study breaks through the limitation of traditional cognition that megaproject management can be met by relying on rigid contracts. In other words, trust can supplement the weakness of rigid contract by forming contract flexibility with different strength of ties. Meanwhile, the specific strategies to establish and maintain trust are given, such as building information model (BIM) collaboration platform and reputation management mechanism.

This paper examines how weak ties and strong ties in the supply chain network influence the financing performance of small and medium enterprises (SMEs) through the mediation of information sharing and innovation capability.

Questionnaires were administered to 208 financial managers responsible for supply chain finance in SMEs in China. Data analysis techniques used included multiple regression analysis and fuzzy-set qualitative comparative analysis.

The authors found that weak ties had a more substantial impact on the financing performance of SMEs than strong ties did. Information sharing and innovation capability played a mediating role between weak and strong ties and the financing performance of SMEs. In addition, information sharing and innovation capability complement each other and jointly influence the financing performance of SMEs.

SMEs are suggested to actively embed themselves in the supply chain network to increase financing opportunities and reduce financing costs. The authors also recommend SMEs to enhance the level of their information sharing in the supply chain network and take advantage of their network ties to access and adopt new technology from other organisations and conduct collaborative innovation with partner institutions.

The paper extends the authors’ understanding of supply chain finance by exploring the intrinsic mechanism of how various constructs (weak ties, strong ties, information sharing and innovation capability) in the supply chain network have an impact on the financing performance of SMEs. In particular, the authors explore the under-researched mediating effect of information sharing and innovation capability on the relationship between network ties and the financing performance of SMEs.

The purpose of this paper is to investigate the effects of tie strength on word‐of‐mouth (WOM) amount and how regulatory focus moderates these effects.

Two studies were conducted with undergraduates of a top Asian university with sample sizes of 106 and 100 using experimental setups.

Replicating findings from existing research, a greater amount of WOM was shared between strong ties compared to weak ties. However, the main finding was that this tie strength effect only held for a prevention‐focused WOM giver but not for a promotion‐focused WOM giver. The latter was found instead giving a similar amount of WOM to strong and weak ties.

The two experiments required subjects to write out their WOM. This may be a limitation since WOM is usually spoken instead of written. Future research can compare spoken and written WOM to evaluate the robustness of the current findings.

Findings from this paper can help companies solicit more WOM through priming the appropriate regulatory focus when consumers communicate with others that are of different social ties.

The current paper contributes to existing WOM literature by investigating the moderating effect of regulatory focus on the relationship between tie strength and WOM amount.

Given the unresolved question about which causal conditions contribute to accelerated internationalization among small and medium enterprises (SMEs) from weak institutional environment, this paper aims to combine theoretically relevant antecedents of domestic networks relationships (weak or strong domestic ties) and decision-making logic (effectuation or causation) to explore the configurations that are the most promising for explaining accelerated internationalization.

This study uses fuzzy-set qualitative comparative analysis (fsQCA) to examine the accelerated internationalization of 33 contrarian cases of SMEs located in weak institutional environment. The data set has been collected through in-depth interviews with managers in Colombia (21 cases) and Peru (12 cases). Building on the findings, an integrative model for accelerated internationalization is presented.

The authors found that the combination of weak domestic ties and effectuation logic accelerated the internationalization of SMEs with fewer resource constraints. In contrast, strong domestic ties and causation behavior lead to accelerated internationalization of SMEs with greater resource constraints. They propose a model to help enrich the existing literature about the causal configurations for achieving accelerated internationalization in SMEs from weak institutional environment.

The contribution of this study is to provide empirical evidence to address three shortcomings in the literature. First, the mixed results regarding the impact of strong and weak domestic ties and decision-making logic in the accelerated internationalization of SMEs; second, the limited research on domestic networks; and third, the scarce investigation in weak institutional environment, where the emphasis on constrained resources is higher.

The paper aims to examine the strength of ties that entrepreneurs use during three critical phases of the international new venture's (INV) development; pre-founding, start-up and early internationalization.

The paper uses in-depth interviews to track the development of five INVs to provide nuanced and detailed findings relating to tie strength during these three critical phases. By focusing on proces, the paper captures in detail the strength of these ties and the dynamics of how they evolve.

While the existing literature considers strength of ties to be two separate entities, the paper develops a continuum with three different levels of strength by using entrepreneurs' actual relationships. The paper found that stronger relationships predominate and that they play an important broker role to link with other unconnected networks.

Since relationships are crucial for recognizing and developing business opportunities, entrepreneurs need to invest time and resources to create and develop relationships. The study indicates that entrepreneurs have stronger relationships during the early phases of firm development mainly because they focus on essential relationships and cull unnecessary ones that form a distraction.

The paper refines theory by identifying a distinct category the “equally strong as weak relationship” that is not yet mentioned in the extant literature but could be useful for international entrepreneurs to position themselves inside a network in foreign markets. In such relationships entrepreneurs experience the co-existence of importance and uncertainty.

The purpose of this paper is to research the effect of uncertain rewards on the recommendation intention in referral reward programs (RRPs) and investigate the interaction of tie strength and reward type on the recommendation intention.

The research adopts a quantitative exploratory approach through the use of experiments. Study 1 adopted a 2×2 between-participants design ((reward type: certain reward vs uncertain reward)×(tie strength: strong tie vs weak tie)). Respectively, by manipulating uncertain probabilities and expected value, Studies 2 and 3 further explore the effect of uncertain rewards and tie strength on customers’ referral intention.

This paper finds the following: compared to certain rewards, customers’ referral intention under uncertain rewards is higher and positive experience has a mediating effect between reward type and recommendation intention; when only the recommender is rewarded, the tie strength between the recommender and the receiver moderates the effect of reward type on the recommendation intention; for strong ties, customers’ recommendation intention is higher in uncertain reward condition, but for weak ties, customers’ willingness to recommend is almost the same in both reward types; when both the recommender and the receiver are rewarded, although certain rewards have a higher expected value than uncertain and random rewards, for strong ties, the participants have a higher referral intention under random rewards than that under uncertain rewards, which have a higher referral willingness than that under certain rewards. Additionally, for weak ties, the reverse is true.

The research has both theoretical implications for research on uncertain rewards and tie strength and practical implications for marketing managers designing and implementing RRPs.