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Individual Option Prices for Climate Change Mitigation

Willingness to pay for climate change mitigation depends on people's perceptions about just how bad things will get if nothing is done. Individual subjective distributions for future climate conditions are combined with stated preference discrete choice data over alternative climate policies to estimate individual option prices (the appropriate ex ante welfare measure in the face of uncertainty) for climate change mitigation. We find significant scope effects in the estimated option prices according to both expected conditions and degree of uncertainty.