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In this article a literature review is carried out with the aim of analysing the current state of research on public policies on eco-innovation in tourism, to provide a knowledge base on the potential and nature of this object of study. A content analysis of the publications in the Web of Science database was carried out. Starting from open-access articles under a structured search equation, 182 articles from the period between 1991 and 2021 were identified; these were subsequently analysed and classified under the Cloud of Science and Tree of Science software. The results show that the study of eco-innovation and its relationship with public policies in tourism contexts is most advanced in Asian countries, and the literature in Latin American contexts is still at an incipient stage. Research on policies that promote environmental care and regulatory policies that improve ecological processes is identified, highlighting the importance of practices and operational factors. It is concluded that studies on remedial, punitive, and macro-regulatory policies for environmental science and technology are absent. [ABSTRACT FROM AUTHOR]

Introduction: the study of eco-innovation has been dealt with from different perspectives that respond largely to the business field. Its conception is constantly changing in order to rethink its scope in the face of growing environmental problems of general interest, such as those occurring in the field of tourism. Objective: literature review is essential to determine to what extent an object of study follows certain interpretative patterns, and in this sense, this research aims to provide the state of eco-innovation in its relation to tourism. Materials and methods: 81 articles published within the databases Scopus, Dimensions and the Google Scholar search engine during the period 2010-2020 were reviewed. Results: a more detailed knowledge of the concept in tourism is shown, identifying three main lines of research: a) environmental innovation; b) competitive advantage and c) environmental management. Conclusion: this is an emerging issue for the tourism industry, and a tool that can contribute to business sustainability. There is limited research on innovation as it relates to environmental technologies in tourism. [ABSTRACT FROM AUTHOR]