This paper reports on a national CVM survey administered in combination with a psychometric scale on pro-social environmental attitudes to test for non-economic motivations for WTP. The multi-item scale measures biospheric, altruistic, and egoistic motives, and analyzes their association with...

Economists concerned with validity are combining stated-preference methods with participatory deliberation to address on-going criticism. Deliberative monetary valuation (DMV) uses formal methods of deliberation to express values for environmental change in monetary terms. However, the results...