Tourism represents one of the main industries in terms of job creation and economic development while sustainability in tourism represents a worldwide challenge. The objective of the present study is to use a bibliometric approach to review the relevant literature. Bibliometric indicators, such as citations, are used to identify the field structure and the VOSviewer software is used to map the main trends in this area. Over the period 1987–2018, a total of 4647 papers were found in Scopus regarding sustainability issues in tourism. Analysis of the leading journals, authors, institutions, and keywords indicates that: (1) the literature on sustainability issues in the field of tourism is significantly growing; (2) a mere six papers accounted more than 300 citations, but there are several prolific authors; (3) of the 614 sources included in the review, the most important have published 46.7% of the papers; (4) in terms of documents and citations, the United States is the leading country in this topic; (5) according to keyword trend network analysis, sustainability is becoming a strategic approach for companies and tourist destinations. Finally, this subfield within the tourism literature has considerable potential and is expected to continue growing.

Measuring, analyzing, and evaluating social, environmental, and economic impact is crucial to aligning the sustainable development strategies of international organizations, governments, and businesses. In this sense, society has been a determining factor exerting pressure for urgent solutions. The main objective of this paper is to provide an exhaustive analysis of the literature about the tools for measuring social impact and their evolution over the last 50 years. The search was conducted in the main academic databases (Scopus and Web of Science), where 924 articles were found from 1969 to 2020 related to the topic. The results of the quantitative analysis show that 71% of the publications were in the last ten years and the most productive countries were the USA and the United Kingdom. The relational analysis identifies 4 large clusters that fragment the literature into different subfields. The most used keywords are linked to the term "Social" in measurement methods, new concepts, and participants. This article contributes to the literature by giving the researcher an insight into the current state of art, trends, categories within the field, and future lines of research.

Improving healthcare performance has become a need for resource optimisation in a field where they are scarce. Activity‐Based Costing (ABC) has been applied for more than 30 years to allocate costs and provide information for decision‐making. This paper seeks to review previous literature in the health field that analysed this cost system and its new version, TDABC (Time‐Driven Activity‐Based Costing). Five hundred ninety articles published from 1989 to 2019 were retrieved from Scopus and Medline. The review includes descriptive, relational and content analyses. Results show that the interest in applying these cost systems is growing, especially in journals focusing on the financial aspects of health, policy and planning, and radiology. However, there is a difference in the application of ABC and TDABC. ABC is more related to efficiency and more used in laboratories. In contrast, TDABC is primarily used in hospitals and addressing the value of health rather than cost‐effectiveness. On the other hand, the findings suggest that TDABC present greater opportunities for publication compared with ABC. Its progression is higher and gets more citations. The current article contributes to broadening the field's vision and encourages authors for further research.

Six Sigma is a business management strategy used by many industries for quality improvement. The aim of the study is to conduct a bibliometric and relational study on Six Sigma research indexed in two well-known databases: Scopus and the Web of Science. Data collection involved 798 articles published in 392 academic journals between 1990 and 2017. Studies were classified based on research type (methodology used), authorship (type and country of affiliation), research field and keywords (co-occurrence and trend). Results show that literature on Six Sigma is dominated by the field of business and management followed by engineering and medicine. United States is the leading country in this topic in terms of documents, cites and co-authorships. Case studies and conceptual papers are clearly the most used methodologies, although there is a noticeable upward trend in surveys in the business and management area. Based on the articles’ keywords, it appears that Lean Six Sigma, the combination of the two management approaches, has recently become one of the most common terms, outpacing traditional terms such as Total Quality Management or continuous improvement. For the field to advance, further survey studies are needed as conceptually it has been deeply researched.

This study introduces a comprehensive bibliometric analysis of the foreign direct investment (FDI) literature by multinational corporations (MNCs) focusing on emerging economies to identify the most influential authors, journals and articles in FDI research and reveals the fields' conceptual and intellectual structures. The purpose of this paper is to address these issues. The study analyzed 533 articles published between 1974 and 2020 in 226 academic journals indexed in the Web of Science (WoS) and Scopus databases. We used the R language for statistical computing to map author collaboration, co-word and develop a conceptual and intellectual map of the field. The results show that, although the FDI literature has many authors, few dominate the field. The International Business Review (IBR) and International Journal of Emerging Markets (IJoEM) are the main sources of the publications. Moreover, bibliometric laws show that our dataset follows the Lotka law of scientific productivity and Bradford law of scattering, identifying the core journals. Finally, FDI by MNCs in emerging economies research is divided into four sub-research themes related to (1) FDI determinants, (2) entry mode, (3) MNCs and FDI performance and (4) the internationalization process. The current article provides several starting points for practitioners and researchers investigating FDI. It contributes to broadening the vision of the field and offers recommendations for future studies.