The current reduction in commercial fish stocks is a problem of global concern. In response to this situation, administrations around the world are attempting to recover critical stocks by implementing new regulations based on catching restrictions and recovery plans. These restrictions have...

Insensitivity to scope is an issue of much debate in contingent valuation (CV) even today. Although the literature about insensitivity to scope is abundant, the reasons for it are not yet well known. Through a meta-analysis of CV studies of biodiversity, the treatment of the different possible...

Valuation of endangered species is important in many circumstances, and particularly when assessing the impact of large accidental oil spills. Previous studies have tested the effects of including in the contingent valuation survey reminders about the existence of diverse substitutes (in terms...

"In this article, we build on previous valuation studies to contribute to the understanding of preferences toward conservation of endangered species elicited via willingness to pay. In particular, we assess the effect of the existence of biological substitutes of local endangered species. We...