Relationship management plays a critical role in sustainable supply chain management (SCM). The literature focuses on the operational and strategic levels of inter-organisational relationships in supply chains, where little is known about the psychological aspect of these relationships. Adopting social identity theory as the key theoretical lens, this research investigates inter-organisational relationships in the context of sustainability implementation in supply chains. Two research questions are asked: RQ1 How do focal organisations engage their supply chain stakeholders in sustainable SCM using social identity thinking? RQ2 What are the specific identity issues relating to inter-organisational relationships in a sustainability context? This research adopts an exploratory case approach and combines multiple data sources: semi-structured interviews, participant observation, and secondary data analysis. Three case studies are conducted in three international organisations and their suppliers in a global setting. The research findings reveal that organisations face the challenge of managing multiple identities during their sustainability implementation in supply chains. Subject to their operational context and supply chain characteristics, organisations may have different approaches to sustainability implementation. Sustainability identity is associated with internal stakeholders’ motivation and proactivity when contacting external stakeholders, as well as external stakeholders’ commitment to cooperation and information sharing in sustainable supply. Analysis of the 41 interviews reveals that both the internal and external stakeholders play an important role in identity formation through various identity assessment and comparison activities. The key identity issues observed during sustainable supply practices include identity conflicts, inconsistencies, and disagreements among the stakeholders. The current SCM literature focuses on supply chains as one uniform identity. A major contribution of this research is that it addresses the complexity of identity issues in supply chains, especially in the context of sustainability implementation. It also contributes to theory by defining a typology of focal organisations’ identity regulation approaches.

Background. Self-categorisation theory and the identity-based motivation perspective suggest that people’s motivation to engage in a particular behaviour is stronger when that behaviour is congruent with their salient social identity. In situations where a certain social identity is made salient, or where people identify strongly with a particular group, the social norm associated with that group may have a strong effect on individual behaviour. This perspective can be used to enhance the understanding of health-related intentions and behaviour. The aim of this thesis is to investigate the usefulness of adding concepts related to social identity to existing social cognitive models of healthy eating. The prediction being made is that members of groups that value healthy eating might be more likely to engage in healthy eating when their membership in that particular group is made salient. Five experimental studies tested the effect of social identity salience and group identification on healthy eating intentions and behaviour. Both intentions and behaviour were measured in each of the five studies, to allow for investigating the existence and potential causes of the intention-behaviour gap for healthy eating. Methods and Results. All five studies included random assignment of participants to conditions, and an experimental manipulation of social identity salience or social image healthiness. In Study 1 (n = 149), conducted among female university students, participants’ female, family, or personal identity was made salient. The results showed that increasing the salience of female or family identity led to stronger healthy eating intentions, but did not increase the likelihood of picking a healthy snack over an unhealthy one. Study 2 (n = 115) did not include a successful manipulation of salient social identity, but it showed a positive association between female identification, measured as a trait, and healthy eating intentions, even after controlling for attitude, subjective norm and perceived behavioural control. Study 3 (n = 156) included a manipulation of social identity salience (female or student) and a manipulation of social image healthiness (images presenting in-group members engaging in either healthy or unhealthy behaviour). The results corroborated the earlier finding that female identification is positively correlated with healthy eating intentions. Also, the results indicated that when participants were shown social images of their in-group members engaging in healthy or unhealthy behaviour, they expressed intentions in line with the social images only if they did not express strong identification with the in-group. Study 4 (n = 87) was conducted in the context of Australian identity and included a manipulation of social images healthiness. The findings provided evidence for the existence of a vicarious licensing effect for healthy eating. Namely, for participants who highly identified with their social group, exposure to pictures of other in-group members engaging in healthy behaviour resulted in choosing less healthy food items from a restaurant menu. Study 5 (n = 117) demonstrated the existence of a vicarious licensing effect in the context of female identity, where participants’ food intake during a taste test was predicted by the interaction of the social image healthiness and their group identification. Conclusions. By examining the predictors of both healthy eating intention and behaviour, the research presented in this thesis sheds light on some of the phenomena potentially underlying the intention-behaviour gap for healthy eating, particularly among women. It appears that the healthy eating norm is internalised by women and translated into healthy eating intentions, to the extent that women who identify more highly with their gender group, and those whose female identity is made temporarily salient, also express stronger healthy eating intentions. The association between female identification and healthy eating behaviour, however, appears to be much less consistent, and in most studies the correlation between healthy eating intentions and eating behaviour was poor, even though a variety of measures of behaviour was used. These findings suggest that actual eating is often not predicted by intentions, but depends on contextual factors, such as being given an opportunity to reinforce the healthy eating goal, or the availability of information about in-group members’ eating behaviour. The results also have implications for health-psychological interventions, in suggesting that people’s response to health-related content (such as social images that may be used in health promotion interventions) may be different depending on their level of group identification. In line with the vicarious licensing effect, individuals who report high levels of group identification might be less likely to respond to interventions aimed at their specific social groups.

This thesis is written in the publishable paper format, which is comprised of two papers. The research took a case study approach analyzing the Twitter activity of the Ottawa Senators of the National Hockey League, and their followers’. The first paper, using content analysis, analyzed the Senators’ tweets and resulting follower activity level. Focus group research aimed to uncover what specific Senators’ Twitter activity influenced their followers online, and their creation and perceived inclusion in an online fan group. The second paper, through the questionnaire method, looked at the Senators’ Twitter and it’s the influence on their follower’s social identity formation and fan commitment levels. These two papers highlight the importance of sport organizations facilitating connections between their followers and most importantly, facilitating the creation of an online central fan group specific to their Twitter handle.

Recent accounting research has indicated that not only do auditors form relational bonds with their clients, but they also tend to acquiesce to their client’s perspective because of that bond. As a result, professional skepticism is often compromised. Accounting research has suggested auditor rotation as a potential solution with mixed results. This may be explained by psychology research showing how quickly bonds can form. Using Social Identity Theory, I predict and find that increasing accountability as operationalized by increasing the salience of any potential client bond before the auditor makes an audit judgment can mitigate the impact of this bond on the auditor’s likelihood to acquiesce to the client’s point of view. This accountability mitigation could be implemented in practice regardless of auditor tenure or auditor rotation. This research provides an intervention that helps to maintain auditor independence while being both cost-effective and practical as it does not require the auditor to discontinue working at their client’s office.

The changing relationship of Americans to their churches has been documented but has not been explained. This is a narrative qualitative research inquiry for the purpose of exploring the perspectives of members of Southern Baptist churches who experienced disaffection as a result of marginalization within the church as they practiced their religious faith. Using Social Identity Theory (SIT) and the microaggressions literature, this study described negative interactions and explained the group processes that marginalize church members and motivate their disaffection from the church. The narratives of this study extend the literature on negative interactions in the religious community, describing and examining antecedents and consequences. Two semi-structured interviews with ten participants who were once members of Southern Baptist churches informed this study. Four Southern Baptist churches were represented by the ten participants. Data analysis was aided by NVivo 11. In spite of the inclusive mission of the church, the results of this study clearly place microaggressions, with their accompanying marginalization, within the church. Characteristic of microaggressions, this study found that micro aggressions in the church: a) leave the responsibility of reparation with the target; b) deny the existence of microaggressions within their congregation; and c) breed a sense of rejection as a result of marginalization. This study affirms and extends Pargament's (2002) suggestion that short-term distress may lead to long-term spiritual growth. This study also emphasizes the need to address issues of faith as a dimension of diversity.

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The material remains of ancient Egypt provide extensive and wide ranging data about the empire throughout its history. However, little evidence is available from ancient Egypt, or any past culture, with which to rebuild an image of social identity or individual experiences. This is especially problematic when the dominant narrative ignores experiences of minorities and minimizes the variation existing throughout the empire. Stable isotope analysis has the potential to reveal variability in lived experience of past peoples by acting as a proxy for behavior that can be analyzed from bone. Such an approach has been applied on individuals from the Romano-Christian Kellis 2 cemetery in the Dakhleh Oasis to explore diversity of lived experiences in relation to age, sex, and gender. Analysis of stable carbon and nitrogen values from bone collagen of 138 adults revealed a predominately C3 plant based diet with the addition of some animal protein. Statistical analysis of these values uncovered discernable differences in the values of young males and older adults which may suggest differences in the biological experiences of these groups and unique social experiences for those individuals. These findings offer a starting point with which to explore social organization at this site and others in ancient Egypt and the methods provide a useful approach to exploring individual experience in the past in ways not possible from other sources.

Organizations have begun to focus heavily on diversity. As a result, organizations spend time and resources creating diversity policies and investing extensively in diversity training programs. While an abundance of research exists on demographic diversity, research has just begun to incorporate employees’ perceptions of diversity as an influential factor affecting organizationally relevant employee outcomes. Employees are a crucial reference in understanding whether organizations benefit from engaging in such actions. The purpose of this study is to examine the influence of diversity climate on employees’ organizational identification. Furthermore, I investigate how organizational identification mediates the relationship between diversity climate perceptions and outcomes including turnover intentions, job satisfaction, and organizational citizenship behavior. I refine our understanding by identifying personal characteristics that influence the diversity climate (PDC) – organizational identification (OID) relationship. This research offers several contributions to management literature and scholars as well as practitioners. First this study empirically examines the relationship between PDC and OID. This connection is important as it identifies the psychological mechanism linking PDC to subsequent outcomes as well as showing how positive climate perception can influence an employee’s sense of belonging. The second contribution is the in-depth identification of personal characteristics and their role in this relationship specifically, demographics, values, and attachment to demographic category. Individuals will differ in their beliefs and thus their attachment based on climate perceptions. Finally, this study links diversity climate to organizationally relevant outcomes through organizational identification.

This is a comparative study on postgraduate students‘ social experiences in two academic departments: the Faculty of Health Sciences and the Wits School of Business, at the University of the Witwatersrand (Wits), South Africa. This study‘s central questions are: how do postgraduate students from two departments perceive their social experiences? What shaped their perceptions? And how do they compare? This study shows a difference in students‘ perceptions and understandings of the social space in those departments. That is, social interactions at the business school (Wits School of Business) are closely linked to the academic space with the patterns linked to having friends from the same classes and study groups with very high expectations of social life on campus; while in the Faculty of Health Sciences, social interactions are limited and socially orientated with the patterns of having friends from the same department and same region with low expectations on their social life. This difference is explained by means of two main factors, the nature of the academic discipline and the students‘ individual identities that they bring to campus.

Group commitments such as partisanship and religion can bias the way individuals seek information and weigh evidence. This psychological process can lead to distorted views of reality and polarization between opposing social groups. Substantial research confirms the existence and persistence of numerous identity-driven divides in society, but means of attenuating them remain elusive. However, because identity-protective cognition is driven by a need to maintain global and not domain specific integrity, researchers have found that affirming an unrelated core aspect of the self can eliminate the need for ego defense and result in more evenhanded evaluation. This study proposes a competing intervention. Individuals possess numerous social identities that contextually vary in relative prominence; therefore a different means to unbiased cognition may be to make many social identities salient simultaneously, reducing influence of any potentially threatened identity. This may also reduce selective exposure to congenial information, which has not been found with affirmation. This study also advances research on the phenomenon of selective exposure by considering individuals’ interpersonal networks in information search. Because networks are not static, and are instead contextually activated, inducing a more complex representational structure of the self may broaden the set of contacts from whom individuals seek information. The bias-mitigative potential of self-affirmation and social identity complexity is examined here in a series of dispute contexts — two partisan, one religious — over a mining spill, an advanced biofuels mandate, and gene editing technology. Results from the three experiments (total N = 1,257) show modest support for social identity complexity reducing group-alignment of beliefs, behavior, and information search, while affirmation failed to reduce, and in some cases increased, group alignment.