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...

The interaction between habit formation and pollution-type ex- ternalities modifies the social optimum through discount effects and elasticity effects. If the substitution elasticity does not exceed unity, both effects reduce optimal consumption and capital in the long run, and the optimal...

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...