“…The relevance of the WTA-WTP disparity for cost-benefit analysis as well as for the understanding of markets and individual decision making has been emphasized by a number of authors (Borges and Knetsch, 1998;Kahneman et al, 1990Kahneman et al, , 1991Knetsch, 1989Knetsch, , 1990Knetsch, , 1992Knetsch, , 1995Knetsch, , 2000Sinden, 1984, 1987).…”