Flaaten’s (1991) study on competing species conjectures that a higher price (harvesting costs) of one species yields a lower (greater) own stock-size and a greater (lower) stock-size of the competing species. I show both conjectures are wrong.

This paper studies the welfare properties of distortionary transfers in a life-cycle growth model where natural capital is private property. The main result is that, under credible pre-commitment, each newborn generation prefers positive taxes-subsidies to laissez-faire conditions when the...

Green accounting theories have shown that negative genuine savings at some point in time imply unsustainability. Consequently, recent studies advocate the use of the genuine savings measure for empirical testing: a negative index implies sustainability be rejected. This criterion is not...