This paper investigates the impact of interviewer effects on willingness to pay (WTP) estimates. Face-to-face surveys were conducted with two interviewers. Both interviewers used a transcript and conducted the survey at the same location and at the same time. We found that responses to the WTP...

Some public programs simultaneously provide a mix of non-rejectable public goods and public bads. Consequently, some individuals would pay for the program, while others might instead need to becompensated. In this paper we estimate twoparametric extended spike models that accountfor positive and...

In this work we investigate the effects of entreaties to reduce the disparity between willingness to pay (WTP) and willingness to accept (WTA) estimates in the valuation of a public program. We find that entreaties are very effective on reducing the hypothetical bias inherent to the WTA...

We use instrumental variable methods to investigate whether the impact of parental smoking habits on their children's smoking decisions is a causal one. We find evidence of same-sex role models in two-parent households: mothers play a crucial role in determining their daughters' smoking...

With global media reporting major environmental disasters, environmental damages linked to large oil spills may go well beyond the territorial limits of affected countries, particularly in the case of passive use values. In this analysis, we compare environmental damages linked a large oil spill...

This paper presents a bottom-up methodological framework for estimating some of the key ecosystem services provided by forests biomes worldwide. We consider the provision of wood and non-wood forest products, recreation and passive use services, and carbon sequestration. The valuation framework...