This paper is focused on the theory of optimal taxation applied to environmental regulation. The first part summarizes the current state of knowledge in this field, especially it concentrates on the so called double dividend hypothesis. The second part of the paper defines the concept of triple...

Enabling educated individuals to work abroad entails a brain drain and results in educated unemployment at home. Because the prospect of migration raises the expected returns to higher education it also facilitates a "brain gain": a eveloping economy ends up with a higher fraction of educated...