We invite you to read the Special Issue on business models in tourism, in the context of considering the principles of sustainable development. It is a collection of 14 articles published in a Special Issue of Sustainability MDPI in 2019–2021. The dynamic changes taking place in the world...

This paper synthesizes the evidence of a negative correlation between income inequality and environmental quality. It shows that inequality exerts adverse impact on environmental outcomes through several channels, including the household, community, national, and international channels. These...

What is a 'sustainable nation’ and how can we identify and rank ‘sustainable nations’? Are nations producing and consuming in a sustainable way? Aggregate indicators have been proposed to answer these questions. This paper quantitatively compares three aggregate indicators of...

With CAIT WRI data for those countries which submitted quantifiable CO2 emission caps under the Copenhagen Agreement, this note supports the existence of a long run relationship between CO2 emissions and GDP in 11 of the 26 countries in our sample over the period 1980-2008. However, the...