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Based on upper echelons theory, this paper aims to explore the mixed impacts of chief executive officer (CEO) Machiavellianism on new venture performance. At the same time, this paper tests the mediating and suppression effect of top management team (TMT) collective organizational engagement, and the moderating effect of entrepreneurial orientation.

The authors conducted a three-wave survey of a sample of 1,550 enterprises established within three years, finally retained the full sample of 216 companies (216 CEOs, 733 vice presidents) with complete responses in all surveys. By using SPSS 26.0 and Amos 26.0 software to conduct data analysis, the authors empirically tested the hypothesized relationships.

Regression results show that CEO Machiavellianism negatively affects new venture performance through TMT collective organizational engagement, whereas there is a direct positive relationship between CEO Machiavellianism and new venture performance when TMT collective organizational engagement is controlled for. In addition, entrepreneurial orientation plays a boundary role in this mechanism, which can weaken the negative effect of CEO Machiavellianism on TMT collective organizational engagement.

By expanding the application contexts of the upper echelons theory, this paper enriches the research on Machiavellianism in the organizational research and further clarified the simultaneous positive and negative effects of CEO Machiavellianism on new venture performance.

The goal of this study was to assess changes in eating self-efficacy after participating in a brief psychoeducational group intervention, grounded in the cognitive-behavioral model, delivered by dieticians in community-based health facilities.

The study was conducted using a quasi-experimental, pre-post design. A total of 110 program participants took part in the study. They were asked to complete the Eating Self-Efficacy Scale before the start of the intervention, at the end of the intervention, and three months after the intervention ended. Data were analyzed using the Linear Mixed Model.

Participants’ personal sense of control over their eating behaviors significantly increased after they completed the program and continued to increase up to the three-month follow-up. The effect of the intervention remained significant after controlling for differences in age and whether participants had access to other forms of individual support or completed the follow-up during the COVID-19 general lockdown.

By promoting participants’ sense of eating self-efficacy, this intervention could lead to positive dietary changes, which in turn could promote better health and healthy aging.

This community intervention is readily accessible and represents a cost-effective approach to promote healthy eating, reducing the risk of chronic disease and the need for medical care, thereby cutting costs for the healthcare system.

(1) This study addresses a gap in the scientific literature as there was limited published research to date that investigated this intervention. (2) The three-month follow-up made it possible to evaluate whether changes in eating self-efficacy were maintained over time. (3) Potential confounding variables, including age, having access to other forms of individual support and the COVID-19 general lockdown, were taken into account.

Consumers nowadays are no longer bystanders in the process of production but are proactive collaborators with the power to co-create value with brands. This study aims to explore the impact of social commerce on the co-creation process of brand value in a social commerce setting.

A questionnaire survey was conducted online to gather 300 eligible responses. The data were empirically validated using the partial least squares structural equation modelling (PLS-SEM) method.

The results indicated that brand engagement (BEN) is vital to brand co-creation (BCC) in social commerce, which could be driven by social-hedonic value (SHV) and social information sharing (SIS).

This study stresses the influence of consumer autonomy in the process of BCC by probing the role of SIS. Moreover, by considering the prevailing trend in social media, this study offers a nuanced perspective on the values of social commerce from the viewpoint of SHV.

This study may serve as a useful guide for practitioners to improve their digital outreach strategy on social commerce to forge stronger relationships, encourage further engagements and promote value co-creation within their brand community.

This examines the effect of relationship quality (RQU) and BEN on BCC through a relational viewpoint.