An interesting paper entitled, "A European Sustainable Tourism Labels proposal using a composite indicator" was recently published in Environmental Impact Assessment Review, September 2015, Vol.54:39–54

The paper defines a Sustainable Tourism Labels System to assess country-brands. While focusing on Europe, the  conclusions of the empirical analysis can be extrapolated to other areas as well.

View abstract and download PDF from :

http://www.sciencedirect.com/science/article/pii/S0195925515000451