This study examined the literature on social life-cycle assessment (S-LCA) published in the last 15 years (2003–2018) using bibliometric methods. Applying scientific mapping and analyzing publication performance, the study describes the structure of and trends in S-LCA publications in terms of related subject categories, authors, journals, countries, and highly cited articles. Challenges and research gaps in the S-LCA literature were also explored. The content of related papers published in the ISI Web of Science databases was examined to identify the main themes investigated, evolution of publication activity, and most representative elements. Analyses were conducted with SciMAT software. This tool enables researchers to map research specialties by extracting qualitative information in the specialized literature and representing it using quantitative measures. The results show rapid and exponential growth of the S-LCA research line in the past ten years, with a clear upward trend in related publications (mostly case studies), especially after publication of the UNEP/SETAC Guidelines for Social Life Cycle Assessment of Products in 2009: 66% of all articles published on S-LCA were published during the period 2015–2018, primarily by European authors. The findings also delineate S-LCA as a highly fragmented research field that has been applied to diverse sectors (agriculture, bioenergy, transport, water management, chemical products, electronics, etc.), mainly in non-European countries. Critical questions concerning methods, framework, paradigms, and indicators remain to be resolved. This study provides insight into the publication performance of S-LCA, characterizing its intellectual structure and salient authors and works. In identifying hotspots in the S-LCA research, the study provides a useful state-of-the-art reference guide for academics and reveals critical research gaps and potential research avenues for future studies to advance in consolidating the discipline.

Purpose: This paper aims to provide a comprehensive, structured, objective bibliometric review of the main leadership styles investigated in the hospitality industry from 1977 to 2021 (September) and depicts this field’s conceptual structure.Design/methodology/approach: Bibliometric analysis techniques such as bibliographic coupling were used using several software applications (VOSviewer, BibExcel and Pajek, among others) to identify trends and research gaps in this literature. The paper provides an overview of the evolution of research activity on different leadership styles that yields important insights into research trends, most-researched themes, main authors and key journals.Findings: A total of 287 publications on leadership from the Web of Science and Scopus databases were summarized. The number of studies on leadership has been growing since 2013, evincing persistent interest in the topic. Eleven main streams of leadership research in the hospitality literature were detected and characterized, with transformational and servant leadership emerging as the most common approaches. Possible evolution of the topics and future research lines were also identified.Research limitations/implications: The findings can guide practitioners and scholars to further explore and implement emerging leadership styles in the hospitality sector. The paper also presents future research avenues to advance the field of leadership.Originality/value: The current review provides a valuable framework for examining key leadership styles, understanding the most-researched styles and illustrating leadership's critical role in organizational and individual outcomes in hospitality businesses.

Purpose: This paper aims to disclose some mechanisms whereby job engagement can be created in a hospitality context. A study was conducted to examine the relationships among high-performance work practices (HPWPs), empowering leadership behaviors, psychological empowerment and engagement.Design/methodology/approach: A theoretical serial mediation model was developed to examine the proposed relationship. The hypotheses were tested using regression analysis with bootstrapping. In total, 340 hotel workers participated in this study.Findings: Both empowering leadership and psychological empowerment were found to be independent mediators of the HPWPs–engagement relationship; in addition, empowering leadership and psychological empowerment mediated this relationship serially.Research limitations/implications: Results suggest that hospitality organizations should implement HPWPs and encourage empowering leadership behavior in their managers to create a work context that fosters psychological empowerment. These strategies will, in turn, generate employee job engagement. A richer, deeper understanding of various antecedents of engagement is the main theoretical contribution of this work.Practical implications: This research stresses the importance of specific organizational conditions and managerial strategies in achieving psychological fulfillment of hospitality employees. In sum, the present study provides important insights for managers and human resource managers in the hospitality industry who seek to foster empowered, engaged employees.Originality/value: The findings suggest that HPWPs are associated with employee engagement through a serial mediation model with two mediators. No research to date has used this nascent methodology to explore the association between HPWPs and engagement.