Programa del congreso

• Purpose: The first aim of this paper is to conceptualise and define prosumer engagement (PE) and analyse its decomposition. The second aim is to analyse its antecedents and its impact on loyalty.

• Theoretical framework: A 'prosumer' is an individual who both consumes and produces, i.e., an individual who might take on more diverse and active roles in the value creation within the service ecosystem, normally, in the digital setup. Prosumer engagement is key element of the platform ecosystem quality management.

• Methodology: A sample of 529 questionnaires from users of online food delivery platforms (eg. Uber Eats) was analysed using structural equation modelling.

• Findings and implications: The results confirm that (i) PE is composed of psychological and behavioural dimensions, where the psychological dimension is composed of cognitive, emotional and social items; (ii) the antecedents of psychological PE are service quality attributes; (iii) the psychological PE affects loyalty directly and indirectly through some elements of behavioural PE (word of mouth (WOM), but not through co-creation with internal stakeholders). Conceptually the analysis involves combining quality management perspective with service-dominant logic and prosumer journey within the setup of platform ecosystem research.

This paper presents an overview of the use of blockchain technology in the agri-food supply chains, including key issues and trends. It analyses the current state of the art and proposes an agenda to guide future research. The study employs bibliometric analysis using VOSviewer software and a sample of 205 articles from the Web of Science database to identify trends and research topics. The number of publications in this field has increased since 2020, indicating a growing interest for practitioners, scholars and managers in this domain. The research areas concern the integration of blockchain technology in the agri-food supply chain to achieve traceability, coordination between all stakeholders, transparent operations, and improved food safety. Additionally, this is linked to sustainability and compliance with the SDGs, while addressing significant challenges in the application of blockchain-based technologies. Organisations can enhance their management confidence by considering the following key aspects. Emerging blockchain technologies can be used to increase product traceability, supporting environmental, social, and economic sustainability. Regulations are necessary to improve trust between stakeholders and to control the quality and safety of products.

• Objectives. This study aims to relate the effects of management systems standards (MSSs) ISO 9001, ISO 14001, and/or ISO 45001 on shareholder wealth.

• Theoretical framework. Grounding on the shareholder theory, we hypothesize a positive relationship between holding certifications and achieving higher levels of firm financial performance (FFP) in terms of return on equity (ROE) and dividend per share yield (DY)

• Methodology. With a balanced data sample of more than 1,300 companies from Europe, East Asia, and North America, this paper performs a longitudinal dynamic data panel analysis between 2010-2019. The two-step system generalised-method-of-moments model quantitatively is applied to test the proposed hypotheses.

• Results/implications. The results neglect any significant relation between single certifications and FFP. However, ROE is positively impacted by double certifications that include ISO 9001, and DY reveals positive relationships in the context of any possible combination. This work argues that operating with multiple certified MSs might be positively related to shareholder wealth. Thereby, this study contributes to the ongoing academic discussion about the relation between MSSs certifications and FFP by providing results from a global dataset. Moreover, it takes on a shareholder-centred approach and introduces DY as relevant FFP indicator in this research stream

Our research contributes to a better understanding of the influence of dynamic digital capabilities on organizational digitalization levels. Based on the unified theory of acceptance and use of technologies (UTAUT), we confirm that facilitating conditions have an inverted U-shaped effect on the company's digitalization level. To the extent that they exist, they assist the company in increasing its level of digitalization; however, increased efforts to facilitate new conditions may be detrimental; thus, the development of dynamic capabilities for digital transformation favourably moderates this relationship, increasing the company's level of transformation. Our study examined 144 SMEs from several industries. Our findings advance our understanding of UTAUT and highlight the significance of dynamic digital transformation capabilities.