Global environmental problems are often assumed to imply extensive inefficiencies since there is no global authority corresponding to the government at a national level. This paper shows, on the…

The economic benefits many African countries derive from international wildlife tourism are very few, especially when viewed from existing potentials in terms of resources and uniqueness. African…

The quality of existing data about the use of urban trails is poor, and planners need better data to plan new trails and manage existing ones. This note presents descriptive analyses of pedestrian and…

This paper describes five alternative visions for cooperative Nile development in the hope that they will assist the Nile riparian countries in their search for both a consensus vision and sound…

This paper presents a typology of international rivers based on asymmetries in economic and political power among riparian states. This typology is then used, along with other factors such as the…

Eishers are risk-averse according to most empirical studies, while expected-utility theory predicts risk neutrality even for sizable stakes. We test this prediction using data from a stated-choice…

This paper analyzes the marginal willingness to pay for changes in noise levels related to changes in the volume of flight movements at a city airport in Stockholm, Sweden, by using a choice…

The Highly Indebted Poor Countries (HIPC) initiative is intended to improve the situation of the poorest developing countries by reducing their debt burden and by permitting increased spending on…

Using a contingent valuation survey, people’s willingness to pay for a given risk reduction is found to be much larger, consistently more than two times as large, when traveling by air compared to by…

We present a model of fishers’ gear choice, which allows for heterogeneity both in production technology and risk preferences and apply it on a panel of Swedish trawlers. Stochastic revenue functions…