Our purpose in this article is to define a network structure which is based on two egos instead of the egocentered (one ego) or the complete network (n egos). We describe the characteristics and properties for this kind of network which we call “nosduocentered network”, comparing it with...

This study provides an overview of the current state of affairs in European tourism, considering the latest developments, identifying future challenges and emerging opportunities. It draws a number of conclusions and makes recommendations at an EU policy level that will support the sustainable...