Since the United Nations approved the eight Millennium Development Goals in 2000 and, 15 years later, the 2030 Agenda for Sustainable Development and its 17 Sustainable Development Goals (SDGs), the highest political institutions in the world have not stopped worrying about achieving the sustainability of the planet. Also in 2015, the European Commission prepared the European Union Action Plan for the Circular Economy, seeking a transition towards a less linear economy, in which products, materials, and resources are kept in the system for as long as possible and in which the generation of waste is minimized. Since then, the European Union has continued issuing reports and communications to accelerate this process in search of a circular economy, making continuous references to the fact that, through circular economy initiatives, the SDGs would be fulfilled. In this context, the objectives of this paper are 1) to determine, through exploratory factor analysis and correlation analysis, whether there is a statistically significant relationship between circular economy initiatives undertaken in the EU and compliance with the SDGs; 2) to check, through a cluster analysis, if there are homogeneous groups of countries worldwide in terms of compliance with the SDGs; and 3) using this same technique, to check whether the countries that make up the EU achieve similar results in terms of compliance with the SDGs.

The European Union (EU) is trying to accelerate the transition from the current linear economy to a circular economy (CE). In fact, the CE is considered a tool to attain sustainable development goals (SDGs). In this sense, this paper aims at analysing the interaction between the CE and SDGs in the context of the new 2030 Agenda and the European CE strategy; thus contributing to the scarce empirical literature that links the potential of the European CE strategy to the achievement of the SDGs set by the 2030 Agenda. Three specific research questions have been formulated. First, could the objectives defined in the 2030 Agenda be considered homogeneous, and could they uniquely measure the concept of sustainability? Second, are there significant correlations between the implementation of a CE in the EU and the SDGs? Finally, is the behaviour of the 28 countries that make up the EU homogeneous in terms of the results of the initiatives aimed at the implementation of a CE? From these questions, nine hypotheses are put forward concerning the possible relationships between a CE implementation and the fulfilment of SDGs in the EU. Using a correlation analysis, an exploratory factor analysis, and a cluster analysis, it has been demonstrated that (a) SDGs do not univocally measure the concept of sustainability; (b) there are significant relationships between CE and SDGs in the EU; (c) the behaviour of these European countries is not homogeneous.

Certifying quality systems has become standard practice in a wide range of companies the world over. However, studies on these systems' underlying motivations and these motivations' effects on performance have focused primarily on industrial firms, leaving the service sector largely unexplored in this regard. In this article structural equation modelling is used to analyse the reasons that underlie certification and the effects of these motivations on performance parameters within the hotel industry. The findings in this study show certain significant differences from the academic findings for industrial companies. The conclusions may help managers of hotel companies to better incorporate quality as a strategic, proactive tool with which to confront changing or adverse economic circumstances.

Certified quality systems are progressively being adopted by all types of industries worldwide. This is due to the fact that many business organisations are actively seeking ways in which they can improve the products and services they offer. However, research has tended to focus on large manufacturing enterprises with a relative neglect of issues relating to quality certification among small-and-medium enterprises in the service sector. The present study addresses this relative gap in the literature by analysing the motives for, and impacts of, quality certification among both small- and medium-sized companies in the Spanish hotel industry. The study finds that significant differences exist with regard to quality certification between both size types in the hotel industry and previous studies based on large companies. The results highlight the importance that these enterprises grant to certified quality systems as a strategic tool that can be used in a proactive way to contend with market changes and adverse economic situations. Our findings have important implications for the management of small- and medium-sized enterprises.