In contingent valuation, despite the fact that many externalities manifest themselves as costs to some and benefits to others, most studies restrict willingness to pay to being non-negative. In this paper, we investigate the impact of allowing for negative, zero and positive preferences for...

We use Kriström’s simple spike model to assess the factors influencing consumers’ willingness to pay a premium for a variety of certified wood products. A survey of over 1600 Pennsylvania and Tennessee residents found that approximately 35% were willing to pay some positive “premium”...

We use Kristrom’s simple spike model to assess the factors influencing consumers’ willingness to pay a premium for a variety of certified wood products. A survey of over 1,600 Pennsylvania and Tennessee residents found that approximately 35% were willing to pay some positive...

We use Kriström’s simple spike model to assess the factors influencing consumers’ willingness to pay a premium for a variety of certified wood products. A survey of over 1600 Pennsylvania and Tennessee residents found that approximately 35% were willing to pay some positive “premium”...