This contribution seeks to provide an overview of current research into sustainable tourism from two angles. It describes firstly the key arguments in the theoretical discussion on the idea of sustainability in the tourism sector, and secondly the areas of academic research that are of interest for research into tourism and sustainability. This study will enable a global evaluation of not only the factors that influence the discussion on the sustainability of tourism, but also the central thematic areas in which this matter is addressed.

Tourism as a social practice has undergone radical change, moving away from a vertical Fordist production system towards a much more disperse nexus comprising the production and consumption of experiences. A combination of the desire of tourists to live like locals and the desire of locals to become producers of tourist experiences has driven a new trend for 'living like a local'. This demand is met by a variety of products and experiences offered from the top down. The meanings associated with the practice of tourism have also changed as more people have become tourists and many of us have become involved in the tourism industry.

The assumption that tourism growth can be sustainable is widespread in certain academic sectors and public institutions. It is an assumption that is partly founded on the Tourist Multiplier theory, proposed by Archer and Owen in the early 1970s. However, this premise is coming up against an increasingly urgent reality: the finite nature of our planet and its resources. Economic development has natural limits. The article presents a conflictivist view of tourism development that is more in line with this reality: The emergence of new economic activity – or its growth – forces us to restructure our use of the available resources. These resources cannot always be multiplied. And as part of this process, some will lose and others will win.

Publications on Corporate Social Responsibility (CSR) in the tourism sector stem from the paradigm of sustainable tourism, in which there has been growing interest in relation to balancing the impacts of the tourism industry in terms of the key environmental, social and corporate issues. The two themes that have generated most references are, firstly, the business case or the possible relationship between its introduction and corporate financial performance, and secondly, commitments to stakeholders. Apart from these themes related to the drivers, publications have also focused on topics such as the types of practices implemented and other types of results achieved by them. In all these fields there is still great potential for development, while new themes are also emerging.

Tourism is one of the main areas where the sharing economy is expanding. The increasing number of press and journal articles on the topic highlights the relevance – on various levels – of platforms such as Airbnb, Uber or BlaBlaCar. This paper will tackle different aspects of this subject. First, the notion of the sharing economy or collaborative consumption will be defined, examining both its initial definitions that addressed the possibility of a new economic paradigm and more recent descriptions looking at the commercial aspects and the particularities introduced by the use of major technological platforms. The focus then moves on to three aspects that shed light on convergences between sharing economy and tourism: the use of information and communication technologies, the role of references or qualifications, and the disruption of preexisting models. Finally, the conclusions from the study are drawn.

This contribution seeks to provide an overview of current research into sustainable tourism from two angles. It describes firstly the key arguments in the theoretical discussion on the idea of sustainability in the tourism sector, and secondly the areas of academic research that are of interest for research into tourism and sustainability. This study will enable a global evaluation of not only the factors that influence the discussion on the sustainability of tourism, but also the central thematic areas in which this matter is addressed.

The sharing economy has burst forcefully onto the scene in a wide range productive sectors (transport, tourism, finance, etc.). This collaborative approach is proving itself to be efficient in terms of business management, while also offering opportunities for citizens to exchange values (providing them with greater autonomy) and in many cases reducing their ecological footprint. Despite these virtues being hard to dispute, a critical and constructive inspection must be carried out to see whether sharing economy companies are also helping to change society's values, or if they are simply making capitalism more efficient. In the analysis for this article, a) we differentiate between the wide variety of actors in the sharing economy according to their purpose; and b) we present three avenues of exploration in which interest has been growing over the past year (the Sharing Business Model Compass, platform cooperativism, and Commons Collaborative Economies). Now is a critical moment if we are to guide the evolution of the sharing economy towards reaching its full potential. This is a complex matter that should not and indeed cannot be simplified.

This article analyses the sustainability of the monetary system, with a systemic focus based in complex thinking. This thinking is far removed from the simple and the conventional, considering not only the distinct actors involved in the system but also the relationships and interactions between them. It is a way of thinking that views systems not as static or permanent, but as dynamic equilibriums linked to adaptation and change.

Being a socio-ecological system, the monetary system is subject to the dynamic behaviour of an adaptive cycle, which in turn is part of a panarchy of systems drawn to different scales across space and time. It is only when one considers this nested network of interconnected systems that it is possible to ensure the sustainability of each system individually and of the group as a whole.

The current monopoly of money in the form of bank debt has reached a point where it is so rigid and centralized it has become unsustainable. Proof of this can be seen in the systemic crisis we are currently living in. From a systemic focus based in complex thinking, this article analyses how the introduction of complementary currencies into the monetary system is one way in which its sustainability can be improved, also contributing to the sustainability of the planetary system as a whole, both economically and environmentally.

Since the 1980s, worldwide there have been numerous socioeconomic initiatives driven by ideas that differ from capitalist concepts such as accumulation of wealth, maximizing of profits and consumerism. These new initiatives appear all around the economic cycle: resources management, production, marketing, consumption, the financial system, the distribution of surplus and the circulation of currencies. One of the names most commonly associated with such initiatives is social and solidarity economy. In the future these initiatives may provide an alternative to the current dominant system.