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We propose that group affective tone may be dysfunctional for teams faced with complex, equivocal, and dynamically changing tasks and environments. Group affective tone (and in particular, a positive affective tone) may exacerbate pre-existing tendencies of teams to develop a single-shared reality that team members confidently believe to be valid and to be prone to group-centrism. Alternatively, heterogeneity in member mood states within teams may lead to the development of multiple-shared realities that reflect the equivocality of the teams’ tasks and circumstances and other functional outcomes (e.g., multiple perspectives and minority dissent), which ultimately may enhance team effectiveness.

In this chapter, we theorize that metaperceptions (beliefs about how one is viewed by others) derived from social identity categories will influence intrapersonal processing and resultant member interaction patterns in diverse work groups. In turn, such patterns of interactions will affect the quality of emergent states within diverse groups, ultimately impacting group-level outcomes. We will extend previous work in this area by examining the formation, nature, and consequences of metaperceptions in workgroups within which individuals vary with regard to social identities. In addition, we will describe the implications of metaperceptions for the effective leadership of diverse groups.

Investors frequently make judgments and decisions in the presence of affect (i.e., mood or emotion). Investors' moods may influence the extent to which they incorporate available financial information in their investment judgments. I propose that investors interpret their moods as signals of the extent to which financial information should be processed to make investment judgments, but only when other, more direct signals regarding the need for in-depth processing are unavailable. Consistent with research in psychology, my experimental results suggest that investors experiencing positive mood exert less effort to process available financial information than investors experiencing negative mood. Consequently, positive mood results in lower-quality financial judgments in my setting. However, when investors receive cues suggesting that initially received information is subjective, the effect of mood on effort to process financial information is mitigated. Overall, my results suggest that factors associated with positive investor mood (e.g., positive market sentiment) reduce the depth of investor analysis and lower judgment quality absent signals regarding the subjectivity of financial information.

Standard estimation of ARMA models in which the AR and MA roots nearly cancel, so that individual coefficients are only weakly identified, often produces inferential ranges for individual coefficients that give a spurious appearance of accuracy. We remedy this problem with a model that uses a simple mixture prior. The posterior mixing probability is derived using Bayesian methods, but we show that the method works well in both Bayesian and frequentist setups. In particular, we show that our mixture procedure weights standard results heavily when given data from a well-identified ARMA model (which does not exhibit near root cancellation) and weights heavily an uninformative inferential region when given data from a weakly-identified ARMA model (with near root cancellation). When our procedure is applied to a well-identified process the investigator gets the “usual results,” so there is no important statistical cost to using our procedure. On the other hand, when our procedure is applied to a weakly identified process, the investigator learns that the data tell us little about the parameters – and is thus protected against making spurious inferences. We recommend that mixture models be computed routinely when inference about ARMA coefficients is of interest.

In this chapter, we seek to resolve the long-running controversy as to whether moods foster or inhibit creativity. We base our arguments on a new theory, which we refer to as “creativity-as-mood-regulation,” where employees experiencing moods are envisaged to engage in creative behavior in the hope of regulating their moods. We further suggest that employees with different goal orientations will have different likelihoods of choosing creative activities to regulate their moods. Finally, we identify the specific goal-orientation conditions under which positive and negative moods may facilitate or depress creativity, and develop and discuss six related propositions.

This work addresses how consumer perceptions of quality may be influenced by the composition of competition. I develop a theoretical framework that explains how consumer evaluations of quality can be negatively impacted by a product's stylistic similarity to popular competitors. These issues are examined empirically using more than 75,000 online consumer evaluations, from the evaluation aggregator Rotten Tomatoes, of 123 feature films released in the United States during 2007. Results suggest that during a movie's opening week, movies that are stylistically similar to the top-performing box office movie are evaluated less favorably. Additional analyses indicate that this negative effect may persist in later periods due to social conformity pressures, and that there is reduced demand for those movies that are stylistically similar to the top box office performer. This article contributes to the broader literature in strategic management by depicting how stylistic features of competitors can affect consumer behaviour and perceptions of quality in markets. This work also suggests managerial implications for entry-timing decisions and positioning choices.

This chapter aims to explore how emotional language construing experiences of UK COVID-19 lockdown in the present frames expectations for future behaviours and intended memories. We analyse 102 responses collected through an online narrative survey during the first lockdown in the United Kingdom. The survey asked participants to articulate ‘an image to remember lockdown by’. Taking a positive discourse analysis approach, using corpus linguistics and systemic functional linguistics tools, we challenge the primarily negative mainstream discourses of COVID-19 and lockdown experiences and explore how language choices evaluating different aspects of life in lockdown evoke emotion to construe a desired projected future. Findings indicate that respondents actively and selectively articulate primarily positive intended memories based on kinship peace and nature that contrast with normal life experiences. Such choices are framed within emotional states enacted through language choices. We argue that these projected memories act as a ‘time capsule’ whereby decisions to retain positive memories help to promote adaptive well-being in the face of potentially overwhelmingly negative circumstances.

Understanding the impact of diversity on group process and performance has been the focus of much research, yet there are still unanswered questions about how diversity impacts group process and performance. One factor that is clearly a consequence of group composition is affective tone. In this chapter, we discuss the impact of diversity and homogeneity on affective responses from group members and argue that the relatively negative affective tone experienced in diverse groups may fuel more systematic information processing and improve decision-making performance. The implications for managing both positive and negative affect in groups will be considered.