... of labelling under imperfect certification. Environment Eco-Labelling Incomplete information Vertical differentiation Imperfect Certification Consumers’ concern for the environment has grown in recent years. This concern is getting translated into their willingness to pay for environmental...

... at: stefan.ambec@toulouse.inra.fr © Emerald Group Publishing Limited 2011 From the literature on environmental regulations, it is well‐known that market‐based regulations such as taxes and cap‐and‐trade are more efficient in protecting the environment and preserving natural resources. By selecting...