Computable general equilibrium models for sustainable development: past and future.

Computable general equilibrium models (CGE) are used to estimate the ex-ante quantitative impact of a change in economic policy. There is a bulk of research in the field of sustainable development applying it for testing implementation of carbon taxation, analyzing reductions of greenhouse gas (GHG), or addressing agricultural issues to work the land efficiently. The main objective of this review is to provide an exhaustive analysis of the literature about these models and their evolution over the last 50 years. The search was conducted in the main academic databases (Scopus and Web of Science), where 1353 articles were found from 1966 to 2019 related to the topic. The results of the descriptives, relational, and content analyses carried out show the current state of the-art, trends, subfields of research, and future gaps to fulfill. This article contributes to the literature that uses CGE models providing an overview of its different applications in the field of sustainability. It gives useful insights to academics who want to further research the field.

Six Sigma for workplace safety improvement: improving hazards and unsafe conditions in a metallic packaging manufacturing company.

Six Sigma has been applied as a business process improvement strategy in many companies worldwide with great results. On the other hand, workplace safety constitutes a key issue for company managers due to their responsibility. The aim of this article is to demonstrate how using Six Sigma can reduce accidents. A case study is conducted on a large European metallic packaging manufacturing company. As a result, the company presented a reduction of lost time accidents from 97 to 30 that saved a lot of time and cost. The σ value achieved was 4.24. This project shows the effectiveness of Six Sigma as an improvement tool in the human resources area, despite most of the previous Six Sigma research being focused on manufacturing aspects. The case studied can be useful either for large companies or small and medium-sized companies interested in improving safety.

Is Time-Driven Activity-Based Costing Coming out on Top? A Comparison with Activity-Based Costing in the Health Field.

The cost of health is a recurrent topic that has generated much research, as it affects all of society. Both public and private agents need to know the real cost of treatments, services, and products for decision-making. This article aims to compare the use and research impact of two cost systems widely used in health: ABC and TDABC, which is an evolution of ABC. For doing so, a bibliometric review in Scopus and Medline was carried out encompassing the years 2009-2019. The results show a great increase in publications using TDABC, while publications on ABC stabilized. On the other hand, the TDABC articles presented higher research impacts in traditional and alternative metrics. Articles on TDABC are more frequently cited, published in better journals, and more visible in academic social networks. The findings suggest that scholars and practitioners should focus on TDABC rather than ABC for addressing cost in health for its simplicity, projection, and research opportunities.

Improving healthcare performance through Activity-Based Costing and Time-Driven Activity-Based Costing.

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 in Health Literature, What Matters?

Six Sigma has been widely used in the health field for process or quality improvement, constituting a quite profusely investigated topic. This paper aims at exploring why some studies have more academic and societal impact, attracting more attention from academics and health professionals. Academic and societal impact was addressed using traditional academic metrics and alternative metrics, often known as altmetrics. We conducted a systematic search following the PRISMA statement through three well-known databases, and identified 212 papers published during 1998-2019. We conducted zero-inflated negative binomial regressions to explore the influence of bibliometric and content determinants on traditional academic and alternative metrics. We observe that the factors influencing alternative metrics are more varied and difficult to apprehend than those explaining traditional impact metrics. We also conclude that, independently of how the impact is measured, the paper's content, rather than bibliometric characteristics, better explains its impact. In the specific case of research on Six Sigma applied to health, the papers with more impact address process improvement focusing on time and waste reduction. This study sheds light on the aspects that better explain publications' impact in the field of Six Sigma application in health, either from an academic or a societal point of view.

Quality improvement in healthcare: Six Sigma systematic review.

Six Sigma has been widely used in the healthcare sector as a management tool to improve patient quality and safety. The objective of this study is to identify opportunities for its implementation through literature analysis. A literature review has been carried out since the first publication of Six Sigma in the sector appeared until 2017, 20 years in all. To this end, it has been used three databases: MEDLINE, Web of Science (Core Collection) and Scopus. Accordance with the 196 articles of our database, it is found that: (1) Six Sigma publications in healthcare sector have been carried out mostly in the USA, (2) multiple specialities and services have used this tool, among them, we can emphasize the operating room and radiology service, (3) the case study has been the most used methodology and, (4) the objectives are focused mainly on achieving reductions of time, costs and errors, for the improvement of the quality and the satisfaction of the patients. This review seeks to serve healthcare professionals to know the benefits that Six Sigma can generate in processes that take place in a health center, hospital or other organizations in the sector.