SummaryThis paper deals with the emergence of perceived age discrimination climate on the company level and its performance consequences. In this new approach to the field of diversity research, we investigated (a) the effect of organizational-level age diversity on collective perceptions of age discrimination climate that (b) in turn should influence the collective affective commitment of employees, which is (c) an important trigger for overall company performance. In a large-scale study that included 128 companies, a total of 8,651 employees provided data on their perceptions of age discrimination and affective commitment on the company level. Information on firm-level performance was collected from key informants. We tested the proposed model using structural equation modeling (SEM) procedures and, overall, found support for all hypothesized relationships. The findings demonstrated that age diversity seems to be related to the emergence of an age discrimination climate in companies, which negatively impacts overall firm performance through the mediation of affective commitment. These results make valuable contributions to the diversity and discrimination literature by establishing perceived age discrimination on the company level as a decisive mediator in the age diversity/performance link. The results also suggest important practical implications for the effective management of an increasingly age diverse workforce.

Pandemics have historically shaped the world of work in various ways. With COVID-19 presenting as a global pandemic, there is much speculation about the impact that this crisis will have for the future of work and for people working in organizations. In this article, we discuss 10 of the most relevant research and practice topics in the field of industrial and organizational (IO) psychology that will likely be impacted by COVID-19. For each of these topics, the pandemic crisis is creating new work-related challenges, but also presenting various opportunities. The topics discussed herein include occupational health and safety, work-family issues, telecommuting, virtual teamwork, job insecurity, precarious work, leadership, human resources policy, the aging workforce, and careers. This article sets the stage for further discussion of various ways in which IO psychology research and practice can address the impacts of COVID- 19 for work and organizational processes that are affecting workers now and will shape the future of work and organizations in both the short and long term. This article concludes by inviting IO psychology researchers and practitioners to address the challenges and opportunities of COVID-19 head-on by proactively innovating the work that we do in support of workers, organizations, and society as a whole.

This study investigates the emergence and the performance effects of an age-diversity climate at the organizational level of analysis. Building upon Kopelman and colleagues' (Kopelman, Brief, & Guzzo, 1990) climate model of firm productivity as well as Cox's (1994) interactional model of cultural diversity, we hypothesize a positive influence of ageinclusive HR practices on the development of an organization-wide agediversity climate, which in turn should be directly related to collective perceptions of social exchange and indirectly to firm performance and employees' collective turnover intentions. The assumed relationships are tested in a sample of 93 German small and medium-sized companies with 14,260 employees participating. To circumvent common source problems, information for the various constructs was gathered from 6 different sources. To test our assumed relationships, we applied structural equation modeling and executed bootstrapping procedures to test the significance of the indirect effects. We received support for all assumed relationships. The paper concludes with practical recommendations on how to establish and make use of a positive age-diversity climate.

Pandemics have historically shaped the world of work in various ways. With COVID-19 presenting as a global pandemic, there is much speculation about the implications of this crisis for the future of work and for people working in organizations. In this article, we discuss 10 of the most relevant research and practice topics in the field of industrial and organizational psychology that will likely be strongly influenced by COVID-19. For each of these topics, the pandemic crisis is creating new work-related challenges, but it is also presenting various opportunities. The topics discussed herein include occupational health and safety, work–family issues, telecommuting, virtual teamwork, job insecurity, precarious work, leadership, human resources policy, the aging workforce, and careers. This article sets the stage for further discussion of various ways in which I-O psychology research and practice can address the issues that COVID-19 creates for work and organizational processes that are affecting workers now and will shape the future of work and organizations in both the short and long term. This article concludes by inviting I-O psychology researchers and practitioners to address the challenges and opportunities of COVID-19 head-on by proactively adapting the work that we do in support of workers, organizations, and society as a whole.

This paper seeks to advance the diversity literature by investigating organizational performance consequences of age diversity. Drawing from social-identity and socialcategorization theory, we theoretically argue that, in age-diverse companies, age-based subgrouping processes occur, favouring a shared perception of a negative age-discrimination climate. This perceived negative age-discrimination climate in turn negatively relates to organizational performance. As the main contribution, top managers' negative age-related stereotypes and diversity-friendly HR policies are introduced as organizational-level moderators that increase and attenuate, respectively, the social categorization processes affecting performance in age-diverse companies. We utilized structural equation modelling (SEM) to test the proposed hypotheses using a multisource dataset comprising 147 companies. The results supported all hypotheses, indicating that low negative top managers' age stereotypes as well as high diversity-friendly HR policies are potential organizational factors that can prevent the negative relation of age diversity with organizational performance transmitted through the negative age-discrimination climate. These results are discussed in light of their contribution to the diversity literature and social-categorization theory as well as their implication for practitioners.