Awareness of the environment and the need to protect it has increased markedly in recent decades, and market actors, consumers and other stakeholders have been progressively more aware of ecological issues. Awareness of the pollution caused by mass tourism has resulted in the emergence of the...

Since the expansion of environmental awareness and protection in recent decades, market actors, tourists and stake-holders, have been progressively more aware of ecological issues and conscious of existing pollution caused by mass tourism. Therefore, a new concept of sustainable tourism have...

Since 1990s environmental protection and awareness became major issues. Consumers are more and more aware of environmental issues and conscious of existing pollution caused by mass tourism. Consequently a new segment of demand desiring sustainable tourism products have appeared, enhancing...

This paper analyzes the properties of the advanced Opaque booking systems used by the online travel agencies in conjunction with their traditional transparent booking system. In section 2 we present an updated literature review. This review underlines the interest and the specicities of Opaque...