Contributions published at Department of Business Administration (Egon Franck)

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Objectives: This study examined psychometric properties of the Polish adaptation of the Level of Personality Functioning Scale–Brief Form 2.0 (LPFS–BF 2.0) measuring features corresponding to self- and interpersonal impairment of personality functioning as defined in the diagnostic guidelines for Personality Disorder in the DSM-5 Section III. Methods: The study involved a non-clinical sample of N = 242 adults (52.9% female; Mage = 30.63 years, SDage = 11.81 years). To evaluate the criterion validity, the Personality Inventory for DSM-5 (PID-5), Personality Inventory for ICD-11 (PiCD), Agency-Communion-Inventory (AC-IN), and Mental Health Continuum–Short Form (MHC-SF) were administered. Results: The LPFS-BF 2.0 yielded two reliable latent components that correspond to an interpretation of self- and interpersonal functioning and showed relevant associations with a personality disorder severity index, maladaptive personality traits, well-being, and personality constructs of agency and communion. The LPFS–BF 2.0 also demonstrated incremental validity over and above all the PID-5 pathological traits with respect to global well-being as an outcome. Conclusions: The Polish adaptation of the LPFS–BF 2.0 is a psychometrically and conceptually sound measure to assess features corresponding to self and interpersonal impairment of personality functioning as defined in the DSM-5 Section III. However, findings warrant replication in clinical populations.

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This contribution has three objectives. First, it seeks to justify the use of the economic criterion, “Provision of health care in accordance with the preferences of current and potential patients” for guiding decisions concerning the adoption of costly innovation in health. Next, it proposes the measurement of these preferences in the guise of willingness to pay (WTP) values through Discrete Choice Experiments (DCEs). Third, it purports to examine two popular arguments against accepting lay persons´ preferences, viz. that they are unwilling or unable to express preferences with regard to health and health care, and that their preferences are unstable, depending on the current state of health. Both of these arguments are refuted by the findings of four DCEs designed to measure WTP for attributes of health insurance and of the treatment of diabetes, respectively [Zweifel in J Regul Econ 29(3): 319–332, 2006; MacNeil Vrooman and Zweifel in Eur J Health Econ 12(1): 87–95, 2011; Sennhauser and Zweifel in: Jakovlijevic M (ed.), Health Economics and Policy Challenges in Global Emerging Markets. NOVA Publishers, Hauppauge NY, 2016].

Employees are often reluctant to ask for advice, despite its potential benefits. Giving employees unsolicited advice may be a way to realize the benefits of advice without relying on them to ask for it. However, for these benefits to surface, it is critical to understand how employees react to unsolicited and solicited advice. Here, we suggest that recipients are likely to attribute self-serving motives to those providing unsolicited advice and prosocial motives to those providing solicited advice. These motives shape the extent to which recipients use advice, learn from it, and perform better as a result of receiving it. In an organizational network study of unsolicited and solicited advice ties (Study 1), an experience-sampling study of daily episodes of receiving unsolicited and solicited advice across two workweeks (Study 2), and an experiment where we manipulated advice solicitation and whether the advisor was a friend or a coworker (Study 3), we found general support for our model. Moderation analyses revealed that recipient reactions were not affected by friendship with the advisor, the number of overlapping advice ties between the advisor and recipient, or the position of the advisor in the social network. By showing how perceptions of the advisor’s motive can explain variability in the impact of unsolicited and solicited advice on recipients, this research clarifies the recipient reactions that advisors must navigate if their advice is to have impact at work.

Objective: Vaccines are an effective means to reduce the spread of diseases, but they are sometimes met with hesitancy that needs to be understood.Methods: In this study, we analysed data from a large, cross-country survey conducted between June and August 2021 in 43 countries (N = 15,740) to investigate the roles of trust in government and science in shaping vaccine attitudes and willingness to be vaccinated. Results: We found that, despite significant variability between countries, both forms of institutional trust were associated with a higher willingness to receive a COVID-19 vaccine. Further, we found that conspiratorial thinking and anti-expert sentiments predicted reduced trust in government and science, respectively, and that trust mediated the relationship between these beliefs and ultimate vaccine attitudes. Although most countries displayed similar relationships between conspiratorial thinking and anti-expert sentiments, trust, and vaccine attitudes, we identified three countries (Brazil, Honduras, and Russia) with significantly differing effects of these variables. Conclusions: We discuss and propose various additional local factors that future research should consider to understand how trust and attitudes towards governmental and scientific institutions may shape individuals’ ultimate vaccine attitudes and decisions.

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Influencer marketing has become increasingly important in the field of marketing communication as an effective way to reach the appropriate target group. Using their own social media channels, influencers often give the impression that they have a personal rather than a commercial relationship with the brand and the products they promote. Therefore, when influencers post sponsored content, consumers often experience difficulty making accurate distinctions as to whether the influencer is offering a personal recommendation or doing a promotion. Given this issue, we examine to what extent sponsored posts of different influencer types affect consumers’ evaluations of the sponsoring brand and the influencer as well as what role the sponsorship disclosure plays therein. Across four experimental studies, we demonstrate that sponsored posts of mega influencers increase consumers’ persuasion knowledge relative to the posts of nano influencers, which decreases the trustworthiness of those posts and in turn negatively impact both brand and influencer evaluations. Interestingly, our results reveal that this indirect effect is only present when the sponsorship is not disclosed. Thus, more transparency by disclosing such sponsorship can eliminate the negative impacts of persuasion knowledge on the trustworthiness of posts and subsequent evaluations of the brand and the influencer. These findings have important implications for marketing practice and research.

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